Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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