Cita APA (7a ed.)

Ketcham, V. A. (1914). The theory and practice of argumentation and debate. Macmillan.

Cita Chicago Style (17a ed.)

Ketcham, Victor Alvin. The Theory and Practice of Argumentation and Debate. New York: Macmillan, 1914.

Cita MLA (8a ed.)

Ketcham, Victor Alvin. The Theory and Practice of Argumentation and Debate. Macmillan, 1914.