MLA style encourages placing the name of the author in the running text, thus decreasing the number and size of parenthetical citations and making the prose more readable. If the name of the author is included in the text, include in the citation only the page number (and, if your Works Cited list includes two works by the same author, a short title).
Bailey concludes that the connection between brain damage and autism is no longer
disputed (8).
Williams independently reached the same conclusion (111-19).