When you are writing a paper in MLA format, your best source is the Purdue Owl MLA Guide. See below for direct links to help you format your paper properly.
Formatting the first page
Creating a works cited page - MLA ninth edition
In-text citations
Formatting quotations
Works Cited Page - Books
Works Cited Page - Periodicals
Works Cited Page - Electronic Sources
Works Cited Page - Other Common Sources
Sample Works Cited Page
Sample Paper in MLA Format