On writing well

MLA

Zinsser, William Knowlton. On Writing Well : the Classic Guide to Writing Nonfiction. 30th anniversary ed., 7th ed., rev. and updated. New York: HarperCollins, 2006.

APA

Zinsser, W. Knowlton. (2006). On writing well : the classic guide to writing nonfiction. 30th anniversary ed., 7th ed., rev. and updated. New York: HarperCollins.

Chicago

Zinsser, William Knowlton. On Writing Well: The Classic Guide to Writing Nonfiction. 30th anniversary ed., 7th ed., rev. and updated. New York: HarperCollins, 2006.