Format your citation in the following manner if you are citing an article from an online periodical in APA format: Author's Last, F. (Date). Article title. Title of Periodical, volume number(issue number if available). Retrieved from http://www.somewhere.com/blah/blah/ For example: Smith, B. (2004). Medicine in ancient Peru. American Journal of Medicine, 54(3). Retrieved from http://www.ama.com/journal.7&456
In APA style, only the first letter of the article title should be capitalized, along with any proper nouns. Both the title of the periodical and the volume number should be italicized.
Format your citation in the following manner if you are citing an article from non-periodical website in APA format: Author's Last, F. (Date). Title. Retrieved from http://www.somewhere.com/blah/blah/ For example: Smith, B. (2004). Medicine in ancient Peru. Retrieved from http://www.medweb.com/how/now/76287
Format your citation in the following manner if you are citing an article from an online periodical in MLA format: Author's Last, First. "Title of Article." Title of Journal Volume Number.Issue Number (Year of Publication): Pages. Medium of Publication. Date of Access. For example: Smith, Bob. "Medicine in Ancient Peru." American Journal of Medicine 54.3 (2004): n. pag. Web. 20 Jun. 2008.
The title of the periodical should appear in italics. Note that the example lists "n. pag." for page numbers, because a periodical published only online will not have page numbers. However, if you are accessing an online article that is also published in print, use the page numbers for the print version. For example: Smith, Bob. "Medicine in Ancient Peru." American Journal of Medicine 54.3 (2004): 490-499. Web. 20 Jun. 2008.
MLA format does not require the use of URLs. However, if you would like to do so, include the URL in brackets at the end of your citation. For example: Smith, Bob. "Medicine in Ancient Peru." American Journal of Medicine 54.3 (2004): n. pag. Web. 20 Jun. 2008. <http://www.ama.com/journal.7&456>
Format your citation in the following manner if you are citing an article from non-periodical website in MLA format: "Title of Article." Name of Website. Name of publisher, Year of Publication. Medium of Publication. Date of Access. The name of the website should appear in italics. Use "n.p." if no publisher is listed, and "n.d." if no date of publication is listed. For example: "Medicine in Ancient Peru." Medweb.com. n.p., n.d. Web. 20 Jun. 2008.