APA aipamena

Etzel, M. J. (2010). Marketing (14th.). TMH.

Chicago Style aipamena

Etzel, Michael J. Marketing. 14th. Delhi: TMH, 2010.

MLA aipamena

Etzel, Michael J. Marketing. 14th. TMH, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.