A note on citing materials found on a website: If you’re citing formal documentation (e.g. Word, PDF documents) found on a website, you should cite it like a book or journal article you found online (including all relevant publisher information and a URL).
If you're citing a specific web page, include the title of the web page, along with the publication date, after the publisher information
Citations from website/page sources require some or all of the following elements:
Author last name first/middle initials. c(year published). Title of website [Internet]. Publication city(state): Publisher/Organization. [updated year abbreviated month day; cited year abbreviated month day]. Available from: URL
APSnet: plant pathology online [Internet]. c1994-2005. St Paul (MN): American Phytopathological Association. [cited 2005 Jun 20]. Available from: http://www.apsnet.org/
Cleveland Clinic. c2006. The Cleveland Clinic Health Information Center [Internet]. Cleveland (OH): The Clinic; Smoking cessation; 2009 [cited 2010 Feb 8]; [about 3 screens]. Available from: http://www.clevelandclinic.org/services/smoking_cessation/hic_quitting_smoking.aspx
UT Southwestern Medical Center [Internet]. 2005 Jun 14. Dallas (TX): University of Texas Southwestern Medical Center. Holographic movies show promise for medical, military applications. [cited 2005 Jun 26]. Available from: http://www8.utsouthwestern.edu/utsw/cda/dept37389/files/228328.html