Utilize an online citation generator. Type "online MLA citation generator" into a search engine to find a website that will help you format your citation.
Pick up the latest edition of an MLA manual. There are updated stylebooks published on a yearly basis by various authors, all of which present official MLA updates and guidelines.
Use a search engine to find an example of a correct MLA website citation. As of January 2011, The University of Hawaii published an article titled "MLA Citation Examples" that has formulas for website citations.
Ask a librarian at your local library. Librarians sometimes understand how to format a bibliography and may be available to help you develop the citation you need.