For more help on citation format and works cited, the Purdue Online Writing Lab (OWL) is an excellent source.
Works Cited entry for a book:
Last name, First name. Title of Book. City of Publication: Publisher, Year of Publication.
Example:
Greenberg, Judith. Letters From a World War II G.I. New York: Franklin Watts, 1995.
Works Cited entry for a journal/magazine article:
Last name, First name. "Title of Article." Title of Periodical Volume. Issue (Date): Pages.
Example:
Keegan, John. "Six Armies at D-Day." Military History vol 3. no. 2 (June 2013): 45-51.
Works Cited entry for a website:
Editor, author or compiler name (if available). Name of Site. Version number. Name of institution/organization affiliated with the site (sponsor or publisher), date of resource creation (if available). Medium of publication. Date of access.
Example:
Felluga, Dino. Guide to Literary and Critical Theory. Purdue U, 28 Nov. 2003. Web. 10 May 2006.