The document provides guidance on citing sources using MLA style in 3 key tasks: 1. Providing in-text or parenthetical citations that include the author's name and page number. 2. Including a reference list called "Works Cited" with full citations of all referenced sources in alphabetical order. 3. Details the anatomy of different types of citations for books, articles, websites, and more with examples of author name, title, publisher, date, and URL structure.