Boyd, H. W., Westfall, R., & Stasch, S. F. (1981). Marketing research: Text and cases (5th ed.). R.D. Irwin.
Chicago Style (17. basım) AtıfBoyd, Harper W., Ralph Westfall, ve Stanley F. Stasch. Marketing Research: Text and Cases. 5th ed. Homewood, Ill.: R.D. Irwin, 1981.
MLA (8th ed.) AtıfBoyd, Harper W., et al. Marketing Research: Text and Cases. 5th ed. R.D. Irwin, 1981.
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