Bettinghaus, E. P. (1968). Persuasive communication. Holt, Rinehart and Winston.
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Chicago-čujuhus (17. p.)
Bettinghaus, Erwin P. Persuasive Communication. New York: Holt, Rinehart and Winston, 1968.
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MLA-čujuhus (9. p.)
Bettinghaus, Erwin P. Persuasive Communication. Holt, Rinehart and Winston, 1968.
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