APA (7th ed.) Citation

Verderber, R. F. (1994). The Challenge of effective speaking (9th ed.). Wadsworth.

Chicago Style (17th ed.) Citation

Verderber, Rudolph F. The Challenge of Effective Speaking. 9th ed. Belmont, Calif.: Wadsworth, 1994.

MLA (9th ed.) Citation

Verderber, Rudolph F. The Challenge of Effective Speaking. 9th ed. Wadsworth, 1994.