Boyd, H. W., & Westfall, R. (1972). Marketing research: Text and cases (3rd ed.). Irwin.
芝加哥风格引文Boyd, Harper W., 与 Ralph Westfall. Marketing Research: Text and Cases. 3rd ed. Illinois: Irwin, 1972.
MLA引文Boyd, Harper W., 与 Ralph Westfall. Marketing Research: Text and Cases. 3rd ed. Irwin, 1972.
警告：这些引文格式不一定是100％准确.