Boyd, H. W., & Westfall, R. L. (1977). Marketing research: Text and cases (4a. ed.). Richard D. Irwin.
Chicago Style (17th ed.) CitationBoyd, Harper W., and Ralph L. Westfall. Marketing Research: Text and Cases. 4a. ed. Homewood: Richard D. Irwin, 1977.
MLA (9th ed.) CitationBoyd, Harper W., and Ralph L. Westfall. Marketing Research: Text and Cases. 4a. ed. Richard D. Irwin, 1977.
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