Etzel, M. J. (2007). Marketing (14th ed.). McGraw-Hill/Irwin.
Chicagoスタイル(17版)引用形式Etzel, Michael J. Marketing. 14th ed. Boston ; New Delhi: McGraw-Hill/Irwin, 2007.
MLA(8版)引用形式Etzel, Michael J. Marketing. 14th ed. McGraw-Hill/Irwin, 2007.
警告: この引用は必ずしも正確ではありません.