McDaniel, C. D., & Gates, R. (1999). Contemporary marketing research (4th ed.). Cincinnati, OH: South-Western College.
Παραπομπή Chicago StyleMcDaniel, Carl D., και Rogers Gates. Contemporary Marketing Research. 4th ed. Cincinnati, OH: South-Western College, 1999.
Παραπομπή MLAMcDaniel, Carl D., και Rogers Gates. Contemporary Marketing Research. 4th ed. Cincinnati, OH: South-Western College, 1999.
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