Dyfyniad APA

Bettinghaus, E. P., & Cody, M. J. (1968). Persuasive communication (5th ed.). Harcourt Brace Javanovich.

Dyfyniad Arddull Chicago

Bettinghaus, Erwin P., and Michael J. Cody. Persuasive Communication. 5th ed. Fort Worth: Harcourt Brace Javanovich, 1968.

Dyfyniad MLA

Bettinghaus, Erwin P., and Michael J. Cody. Persuasive Communication. 5th ed. Harcourt Brace Javanovich, 1968.

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