APA aipamena

Etzel, M. J. (2007). Marketing (14th ed.). McGraw-Hill/Irwin.

Chicago Style aipamena

Etzel, Michael J. Marketing. 14th ed. Boston ; New Delhi: McGraw-Hill/Irwin, 2007.

MLA aipamena

Etzel, Michael J. Marketing. 14th ed. McGraw-Hill/Irwin, 2007.