Cita APA (7th ed.)

Boyd, H. W., & Westfall, R. L. (2002). Marketing research; text and cases (Seventh edition.). R. D. Irwin; A.I.T.B.S.

Cita Chicago (17th ed.)

Boyd, Harper W., i Ralph L. Westfall. Marketing Research; Text and Cases. Seventh edition. Homewood, Ill., Delhi: R. D. Irwin; A.I.T.B.S, 2002.

Cita MLA (8th ed.)

Boyd, Harper W., i Ralph L. Westfall. Marketing Research; Text and Cases. Seventh edition. R. D. Irwin; A.I.T.B.S, 2002.