Works Cited

Begin your Works Cited page on a separate page at the end of your research paper. It should have the same one-inch margins and last name, page number header as the rest of your paper.
Label the page Works Cited (do not underline the words Works Cited or put them in quotation marks) and center the words Works Cited at the top of the page.
Double space all citations, but do not skip spaces between entries.
List page numbers of sources efficiently, when needed. If you refer to a journal article that appeared on pages 225 through 250, list the page numbers on your Works Cited page as 225-50.
If you're citing an article or a publication that was originally issued in print form but that you retrieved from an online database, you should provide enough information so that the reader can locate the article either in its original print form or retrieve it from the online database (if they have access).

Here is a good link to MLA guidelines for Works Cited : http://www.lib.usf.edu/ref/mla.html