APA استشهاد

Bettinghaus, E. P. (1980). Persuasive communication (3.). Holt.

استشهاد بنمط شيكاغو

Bettinghaus, Erwin P. Persuasive Communication. 3. New York: Holt, 1980.

MLA استشهاد

Bettinghaus, Erwin P. Persuasive Communication. 3. Holt, 1980.