Etzel, M. J. (2007). Marketing (14th ed.). McGraw-Hill/Irwin.
芝加哥风格引文Etzel, Michael J. Marketing. 14th ed. Boston ; New Delhi: McGraw-Hill/Irwin, 2007.
MLA引文Etzel, Michael J. Marketing. 14th ed. McGraw-Hill/Irwin, 2007.
警告：这些引文格式不一定是100％准确.
APA引文