Cita APA (7th ed.)

Zeithaml, V. A., Bitner, M. J., & Gremler, D. D. (2008). Services marketing: Integrating customer focus across the firm (5th ed.). Tata McGraw-Hill.

Cita Chicago (17th ed.)

Zeithaml, Valarie A., Mary Jo Bitner, i Dwayne D. Gremler. Services Marketing: Integrating Customer Focus Across the Firm. 5th ed. New Delhi: Tata McGraw-Hill, 2008.

Cita MLA (9th ed.)

Zeithaml, Valarie A., et al. Services Marketing: Integrating Customer Focus Across the Firm. 5th ed. Tata McGraw-Hill, 2008.