Cita APA (7a ed.)

Zeithaml, V. A., Bitner, M. J., & Gremler, D. D. (2006). Services marketing: Integrating customer focus across the firm (4th ed.). McGraw-Hill/Irwin.

Cita Chicago Style (17a ed.)

Zeithaml, Valerie A., Mary Jo Bitner, y Dwayne D. Gremler. Services Marketing: Integrating Customer Focus Across the Firm. 4th ed. New York, N.Y: McGraw-Hill/Irwin, 2006.

Cita MLA (9a ed.)

Zeithaml, Valerie A., et al. Services Marketing: Integrating Customer Focus Across the Firm. 4th ed. McGraw-Hill/Irwin, 2006.