Boyd, H. W., & Westfall, R. L. (2002). Marketing research; text and cases (Seventh edition.). R. D. Irwin; A.I.T.B.S.
Chicago Style (17. basım) AtıfBoyd, Harper W., ve Ralph L. Westfall. Marketing Research; Text and Cases. Seventh edition. Homewood, Ill., Delhi: R. D. Irwin; A.I.T.B.S, 2002.
MLA (8th ed.) AtıfBoyd, Harper W., ve Ralph L. Westfall. Marketing Research; Text and Cases. Seventh edition. R. D. Irwin; A.I.T.B.S, 2002.
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