Here is the link to publisher W.W. Norton's 49-page PDF on MLA style. (First 10 pages are about in-text citations; works cited citations begin on page 11.) Sometimes an optional element is included, like a series or an access date. Follow the directions from your instructor on what you should use.
Video on How to Use MLA
Marquette University has created a 4 1/2 minute video to explain MLA 8th edition style.