APA aipamena

BOYD HARPER W. (1990). MARKETING RESEARCH: TEXT & CASES (7TH.). IRWIN MCGRAW-HILL.

Chicago Style aipamena

BOYD HARPER W. MARKETING RESEARCH: TEXT & CASES. 7TH. HOMEWOOD: IRWIN MCGRAW-HILL, 1990.

MLA aipamena

BOYD HARPER W. MARKETING RESEARCH: TEXT & CASES. 7TH. IRWIN MCGRAW-HILL, 1990.