APA (7th ed.) Citation

Verderber, R. F. (1979). The challenge of effective speaking (4th ed.). Wadsworth Pub. Co..

Chicago Style (17th ed.) Citation

Verderber, Rudolph F. The Challenge of Effective Speaking. 4th ed. Belmont, Calif.: Wadsworth Pub. Co., 1979.

MLA (9th ed.) Citation

Verderber, Rudolph F. The Challenge of Effective Speaking. 4th ed. Wadsworth Pub. Co., 1979.