Citazione APA

Boyd, H. W., Westfall, R. L., & Stasch, S. F. (1989). Marketing research: Text and cases (7th ed.). Irwin.

Stile di citazione Chicago

Boyd, Harper W., Ralph L. Westfall, e Stanley F. Stasch. Marketing Research: Text and Cases. 7th ed. Homewood, Ill.: Irwin, 1989.

Citazione MLA

Boyd, Harper W., et al. Marketing Research: Text and Cases. 7th ed. Irwin, 1989.