When using the MLA style to cite articles from electronic journals, be sure to include the following infomration about the article:

• author(s)
• full title of the article (include subtitle if present)
• title of the electronic journal
• volume and issue numbers of the journal
• year of the article
• page numbers
• date when the researcher retreived or accessed the source
• name of any company, institution, or organization sponsoring or associated with the Web site
• electronic address, or URL, of the source or, for a subscription service, the URL of the service's main page (if known) or the

Example:

Correia, Joao P. "Tooth loss rate from two captive sandtiger
        sharks." Zoo Biology,18.4 (1999): 313-317. 25 Jan. 
        1999 <http://www3.interscience.wiley.com>.