Boyd, H. W., & Westfall, R. (1972). Marketing research: Text and cases (3rd ed.). Irwin.
Chicagoスタイル(17版)引用形式Boyd, Harper W., , Ralph Westfall. Marketing Research: Text and Cases. 3rd ed. Illinois: Irwin, 1972.
MLA(9版)引用形式Boyd, Harper W., , Ralph Westfall. Marketing Research: Text and Cases. 3rd ed. Irwin, 1972.
警告: この引用は必ずしも正確ではありません.