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Citing E-Resources

How to properly cite Web pages, online journal articles, e-books, and other information resources in electronic format.

Why Cite? - Important Elements - Vancouver, APA & ACS Examples - Other Examples

Why Cite?

1) Documentation in support of the argument or to build a foundation for the thesis
2) Acknowledgement of a source of information or giving credit to an author
3) To locate and verify the resource

Preventing Plagiarism
The word plagiarism comes from the Latin plagiarius meaning kidnapper. Now sometimes referred to as misappropriation, plagiarism entails the failure to acknowledge words as well as ideas, and also encompasses copyright violations. As ignorance is never a defense for plagiarism, always consult style manuals' documentation sections.

Important Elements

Familiar Elements
A citation for electronic information will include traditional elements of a citation, such as author, title and date. The difference is where to look for these elements. With a journal article or an e-book, this is fairly straightforward. The information will be the same as if it had been in print. But with Web Pages, this can be more difficult.
Author
Look for a statement of responsibility. Sometimes this is obviously placed at either the top or the bottom of the page. It may be an individual, or a corporate author. You may be able to find the author in the source code in a meta tag. You may have to go to an "about" page to find the author. Caution: People listed as "Webmaster" are usually not the author; the person who holds the copyright may be the publisher and not the author.
Title
On a Web page, a title can be several places, and one must choose the most appropriate. Often, there is a major heading, a banner or other image that has the title. Another choice might be what the author of the Web page has put in the html <title> field. You can find this in the source code, but it is most easily found at the top of the Web browser when visiting the site.
Date of Publication
Keep track of both the creation date and the modified date, if both are available. When information comes from a previously publication in print, you may have both the print publication date and a date when this information was posted on the Web. Double check both the Web page and its source code to be sure. Be aware that some pages have html code that posts today's date, but will have other dates that are the actual publication date.
New Elements
When researching in the electronic environment, it is important to keep track of elements that are not in traditional citations.
Date Accessed
Take the case of a book with many editions, and multiply the problem exponentially, and you have a sense of why you need to keep track of the date of a Web page. Web pages can literally be changed in seconds, so that the Web page you cite today may not exist in the same form tomorrow. Always include the date that you viewed the document. Some style manuals even ask you to specify the hour.
Format
Some e-resources are available in a variety of formats, such as print, CD-ROM and Web. E-mails chats and other forms of electronic communication can also be cited. Specify which one you used.
URL
When citing a Web page, include the URL. Some style manuals may require that you give the entire URL; others will allow abbreviation. This can be important, since many sites now have dynamically generated Web pages whose URLs contain code, passwords, and sessions that make them impossibly long.
   
   

Citing Information from E-Books
Vancouver (NLM) Monograph [book] on the Internet *
Foley KM, Gelband H, editors. Improving palliative care for cancer [monograph on the Internet]. Washington: National Academy Press; 2001 [cited 2002 Jul 9]. Available from: http://www.nap.edu/books/0309074029/html/
APA Chapter or Section in an Internet document
Broclain, D., Jepson, R., Moumjid-Ferdjaoui, N. (2003, August 24). Influence
      of comprehensive versus partial information on consumers' screening choices.
      In The Cochrane Library (Issue 1, 2004). Retrieved March 15, 2004, from 
      http://www.update-software.com/clibng/cliblogon.htm
ACS [No example given. Best guess best on information from Guide]
MICROMEDEX Healthcare Series. Thomson: Greenwood Village, Colorado
     (accessed April 2004).

Citing E-Journals
Vancouver (NLM)

Journal article on the Internet *
Abood S. Quality improvement initiative in nursing homes: the ANA acts in an advisory role. Am J Nurs [serial on the Internet]. 2002 Jun [cited 2002 Aug 12];102(6):[about 3 p.]. Available from: http://www.nursingworld.org/AJN/2002/june/Wawatch.htm

APA Journal article online for which there is a print equivalent (one author)
Neill, R. (1999). A meta-analysis of the treatment of intermittent claudication
     [Electronic Version]. Journal of Family Practice, 48(6), 418-419.
            
Journal article online for which there is a print equivalent (3-6 authors)
Malcolm, R., Herron, J. E., Anton, R. F., Roberts, J., & Moore, J. (2000). Recurrent
     detoxification may elevate alcohol craving as measured by the Obsessive
     Compulsive Drinking scale [Electronic version]. Alcohol,20(2), 181-185.
Article in an Internet-only journal
Hidalgo, A., Monroy, A., Arana, R. M., Taja, L., Vazquez, G., & Salcedo, M. (2003).
     Chromosomal imbalances in four new uterine cervix carcinoma derived cell
     lines. BMC Cancer, 3, Article 8. Retrieved March 15, 2004, from
     http://www.biomedcentral.com/1471-2407/3/8
Article obtained by searching a database
Haimowitz, S., Delano, S. J., & Oldham, J. M. (1997). Uninformed decision
     making: The case of surrogate research consent. The Hastings Center Report, 27(6),
     9-16. Retrieved March 25, 2004, from Expanded Academic ASAP.
ACS Online Periodicals
Casey, J. R.; Morgan, P. E.;  Vullo, D.; Scozzafava, A.; Mastrolorenzo, A.;  Supuran,
     C. T.  Carbonic Anhydrase Inhibitors. Design of Selective, Membrane-Impermeant
     Inhibitors Targeting the Human Tumor-Associated Isozyme IX. J. Med. Chem.
     [Online] 2004,  47,2348 - 2355.

Citing Web Pages
Vancouver (NLM)

Homepage/Web site *
Cancer-Pain.org [homepage on the Internet]. New York: Association of Cancer Online Resources, Inc.; c2000-01 [updated 2002 May 16; cited 2002 Jul 9]. Available from: http://www.cancer-pain.org/

Part of a homepage/Web site *
American Medical Association [homepage on the Internet]. Chicago: The Association; c1995-2002 [updated 2001 Aug 23; cited 2002 Aug 12]. AMA Office of Group Practice Liaison; [about 2 screens]. Available from:
http://www.ama-assn.org/ama/pub/category/1736.html

APA Multipage document created by private organization
Medical University of South Carolina Library, Hands on Health Staff. (2004, March 2).
     What is high blood pressure? Retrieved March 15, 2004, from
     http://www.handsonhealth-sc.org/
Stand-alone document
Adams, M. (2003, September 23). The dead grandmother/exam syndrome and the
     potential downfall of American society. Retrieved April 20, 2003, from
     http://biology.ecsu.ctstateu.edu/People/ConnRev.html
ACS Web Site (freely accessible)
Chemistry.org: American Chemical Society. http://www.acs.org (accessed
     April 2004).
Web Site (subscription only) *
Cambridge Structural Database; Cambridge University: Cambridge, England
     (accessed Aug 1996).

* example quoted from style manual


Other Style Examples

For complete information on citing any type of reference, whether online or print,
consult the appropriate style guides.

Vancouver
International Committee of Medical Journal Editors
Uniform Requirements for Manuscripts Submitted to Biomedical Journals: Sample References
The style referred to as "Vancouver" is maintained by the International Committee of Medical Journal Editors (ICMJE). Their Reference style and format is based on that of the National Library of Medicine (NLM). The samples below are from the NLM Website.

CD-ROM
Anderson SC, Poulsen KB. Anderson's electronic atlas of hematology [CD-ROM]. Philadelphia: Lippincott Williams & Wilkins; 2002.

Database on the Internet
Open database:
Who's Certified [database on the Internet]. Evanston (IL): The American Board of Medical Specialists. c2000 - [cited 2001 Mar 8]. Available from: http://www.abms.org/newsearch.asp
Closed database:
Jablonski S. Online Multiple Congenital Anomaly/Mental Retardation (MCA/MR) Syndromes [database on the Internet]. Bethesda (MD): National Library of Medicine (US). c1999 [updated 2001 Nov 20; cited 2002 Aug 12]. Available from: http://www.nlm.nih.gov/mesh/jablonski/syndrome_title.html

Part of a database on the Internet
MeSH Browser [database on the Internet]. Bethesda (MD): National Library of Medicine (US); 2002 - [cited 2003 Jun 10]. Meta-analysis; unique ID: D015201; [about 3 p.]. Available from: http://www.nlm.nih.gov/mesh/MBrowser.html Files updated weekly.
MeSH Browser [database on the Internet]. Bethesda (MD): National Library of Medicine (US); 2002 - [cited 2003 Jun 10]. Meta-analysis; unique ID: D015201; [about 3 p.]. Available from: http://www.nlm.nih.gov/mesh/MBrowser.html Files updated weekly. Updated July 9, 2003

APA
The Publication Manual of the American Psychological Association, 5th edition, contains information on citing electronic media. This book is on permanent reserve at the 4th floor public service desk of the Library. This book is available for purchase at most bookstores, or can be ordered online at http://apastyle.apa.org. APA offers a separate PDF publication, APA Style Guide to Electronic References, which can be purchased online. A few examples are available online.
Citations in the text of electronic sources
(Fost, 2005, para. 24)

AMA
The AMA Manual of Style acknowledges that its specific recommendations are slim, and that the guidelines for citing electronic information are continuing to evolve.

Online journals
Edwards JE, Moore RA, McQuay HJ. Individual patient meta-analysis of single-dose rofecoxib in postoperative pain. BMC Anesthesiology [serial online]. February 11 2004;4( 3). Available at URL http://www.biomedcentral.com/1471-2253/4/3. Accessed April 15, 2004.

Li and Crane
Xia Li and Nancy B. Crane wrote the first edition of Electronic Styles: A Handbook for Citing Electronic Information in 1993. They were two of the first to apply documentation guidelines to the e-environment, using APA and MLA. The example below is from the 1996 edition, and are according to APA style, 4th ed.

Citing Part of a Work in a Commercial Online Database
Liang, C. & Wainberg, M. A. (2004). Virology of HIV. In Infectious Diseases (2nd ed.), [Online]. Available: MD Consult/Books/Cohen: Infectious Diseases/Section 5 - HIV and AIDS/121 - Virology of HIV [2004, April 19].

Why Cite? - Important Elements - Vancouver, APA & ACS Examples - Other Examples

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