Boyd, H. W., Westfall, R. . .., & Stasch, S. . F. (1998). Marketing research: Text and cases (7th.). A I T B S.
Chicago Style aipamenaBoyd, Harper W., Ralph Westfall, and Stanley F. Stasch. Marketing Research: Text and Cases. 7th. New delhi: A I T B S, 1998.
MLA aipamenaBoyd, Harper W., et al. Marketing Research: Text and Cases. 7th. A I T B S, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.