MLA

Ehninger, Douglas, and Wayne Brockriede. Decision by Debate. 2d ed. New York: International Debate Education Association, 2008.

APA

Ehninger, D., & Brockriede, W. (2008). Decision by debate. 2d ed. New York: International Debate Education Association.

Chicago

Ehninger, Douglas., and Wayne Brockriede. Decision by Debate. 2d ed. New York: International Debate Education Association, 2008.