Gass, R. H. (1999). Persuasion, social influence, and compliance gaining. Boston: Allyn and Bacon.
Παραπομπή Chicago StyleGass, Robert H. Persuasion, Social Influence, and Compliance Gaining. Boston: Allyn and Bacon, 1999.
Παραπομπή MLAGass, Robert H. Persuasion, Social Influence, and Compliance Gaining. Boston: Allyn and Bacon, 1999.
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