Begin creating the citation. Type the author's last name, followed by a comma, the first name and a period. It will appear as: Smith, John. If there is more than one other, type the subsequent names in normal order, e.g.: Smith, John, and Nigel Baker.
Format the title of the work. If a short story or poem, place in quotation marks: "Writing Online." Be sure to place the period inside the quotation marks. If citing a longer work, such as a book or journal, format in italics. Include the name of the website in italics if it's an electronic source.
Type the institution or organization affiliated with the publication. If a university, abbreviate with a "U." If a press, abbreviate with a "P."
Type "n.d." to indicate no date. MLA Handbook for Writers of Research Papers (7th ed.) and the MLA Style Manual and Guide to Scholarly Publishing (3rd ed.) typically uses n.d. for web pages; however, if you have found a print publication that does not provide a publication date and you can't even find it after an online search, n.d. can also be used.
Complete the citation. Put a space after the final period on "n.d." Type the medium of publication; because the source is most likely web-based, type "Web." If a website, you will then type the date accessed -- MLA uses European-style dating in Works Cited -- followed by a period. The final citation will follow this example of formatting:
Smith, John, and Nigel Baker. "Writing Online." Online Writing Sources.[< don't forget to italicize the website name] Wittenberg U, n.d. Web. 17 July 2011.