Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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