Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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