Cita APA (7a ed.)
Verderber, R. F. (1979). The challenge of effective speaking (4th ed.). Wadsworth Pub. Co..
Cita Chicago Style (17a ed.)
Verderber, Rudolph F. The Challenge of Effective Speaking. 4th ed. Belmont, Calif.: Wadsworth Pub. Co., 1979.
Cita MLA (9a ed.)
Verderber, Rudolph F. The Challenge of Effective Speaking. 4th ed. Wadsworth Pub. Co., 1979.
Precaución: Estas citas no son 100% exactas.