APA (7th ed.) Citation

Zeithaml Valarie A., Bitner Mary Jo, & Gremler Dwayne D. (2006). Services marketing: Integrating customer focus across the firm (4th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Zeithaml Valarie A., Bitner Mary Jo, and Gremler Dwayne D. Services Marketing: Integrating Customer Focus Across the Firm. 4th ed. McGraw-Hill, 2006.

MLA (8th ed.) Citation

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