Zikmund, W. G. (2009). Essentials of Marketing Research. Cengage.
Chicago Style (17th ed.) CitationZikmund, William G. Essentials of Marketing Research. Delhi: Cengage, 2009.
MLA引文Zikmund, William G. Essentials of Marketing Research. Cengage, 2009.
警告:這些引文格式不一定是100%准確.