MLA Style was updated and simplified in 2016 with the 8th edition of the MLA Handbook.
A simple print book* citation now would consist of:
Author (last name, first name). Title in Italics. Publisher, Year published.
Here are some examples of what simple citations to a whole book in print should look like:
Henley, Patricia. The Hummingbird House. MacMurray, 1999.
Morrison, Toni. Beloved. Plume, 1994.
Pollan, Michael. The Omnivore's Dilemma. Penguin, 2006.
Here's an example of a book with two authors (the 2nd one is written first name, last name); a subtitle (after the colon in the title in italics); and an edition statement (3rd ed., right after the title but not in italics):
Pomeranz, Kenneth, and Steven Topik. The World That Trade Created: Society, Culture, and the World Economy, 1400 to the Present. 3rd ed., M.E. Sharpe, 2013.
For more information on citing with MLA style, please see the CAS's Berkeley College's Writing and Citing LibGuide - All about MLA page, which includes a video explaining the new MLA format, and a brochure with many examples.
There is also more detailed info on citing books in MLA on the Purdue OWL's MLA Works Cited Page: Books.
* For information about citing eBooks that you read online, see the FAQ How do I cite an ebook in the MLA style format?
