APA aipamena

Zeithaml, V. A. B. (2013). Services Marketing (7th ed.). Pearson Education.

Chicago Style aipamena

Zeithaml, Valarie A; Bitner. Services Marketing. 7th ed. New Delhi: Pearson Education, 2013.

MLA aipamena

Zeithaml, Valarie A; Bitner. Services Marketing. 7th ed. Pearson Education, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.