Boyd, H. W., & Westfall, R. S. (1977). Marketing research: Text and cases (4th ed.). Richard D. Irwin.
シカゴスタイル引用形Boyd, Harper W., , Ralph Stasch Westfall. Marketing Research: Text and Cases. 4th ed. Illinois: Richard D. Irwin, 1977.
MLA引用形式Boyd, Harper W., , Ralph Stasch Westfall. Marketing Research: Text and Cases. 4th ed. Richard D. Irwin, 1977.
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