Dyfyniad APA

Bettinghaus, E. P. (1968). Persuasive communication. Holt, Rinehart and Winston.

Dyfyniad Arddull Chicago

Bettinghaus, Erwin P. Persuasive Communication. New York: Holt, Rinehart and Winston, 1968.

Dyfyniad MLA

Bettinghaus, Erwin P. Persuasive Communication. Holt, Rinehart and Winston, 1968.

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