APA (7th ed.) Citation

Verderber, R. F., & Verderber, K. S. (2003). The challenge of effective speaking (12th ed.). Wadsworth/Thomson Learning.

Chicago Style (17th ed.) Citation

Verderber, Rudolph F., and Kathleen S. Verderber. The Challenge of Effective Speaking. 12th ed. Belmont, Ca: Wadsworth/Thomson Learning, 2003.

MLA (9th ed.) Citation

Verderber, Rudolph F., and Kathleen S. Verderber. The Challenge of Effective Speaking. 12th ed. Wadsworth/Thomson Learning, 2003.