Cita APA (7a ed.)

Zeithaml Valari A. (2011). Services Marketing (5th.). Tata Mcgraw Hill.

Cita Chicago Style (17a ed.)

Zeithaml Valari A. Services Marketing. 5th. New Delhi: Tata Mcgraw Hill, 2011.

Cita MLA (9a ed.)

Zeithaml Valari A. Services Marketing. 5th. Tata Mcgraw Hill, 2011.