Gass, R. H. (2011). Persuasion, social influence and compliance gaining fourth edition. Allyn & Bacon.
Lua i Stíl Chicago (17ú heag.)Gass, Robert H. Persuasion, Social Influence and Compliance Gaining Fourth Edition. Allyn & Bacon, 2011.
Lua MLA (8ú heag.)Gass, Robert H. Persuasion, Social Influence and Compliance Gaining Fourth Edition. Allyn & Bacon, 2011.
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