APA ציטוט

Verderber, R. F. (1982). The challenge of effective speaking (5th ed.). Wadsworth.

Chicago Style (17th ed.) Citation

Verderber, Rudolph F. The Challenge of Effective Speaking. 5th ed. Belmont, Calif: Wadsworth, 1982.

ציטוט MLA

Verderber, Rudolph F. The Challenge of Effective Speaking. 5th ed. Wadsworth, 1982.