Citazione Stile APA (7a Edizione)

Zeithaml, V. A., Bitner, M. J., & Gremler, D. D. (2018). Services marketing: Integrating customer focus across the firm (Seventh edition.). McGraw-Hill Education.

Citazione stile Chigago Style (17a edizione)

Zeithaml, Valarie A., Mary Jo Bitner, e Dwayne D. Gremler. Services Marketing: Integrating Customer Focus Across the Firm. Seventh edition. New York: McGraw-Hill Education, 2018.

Citatione MLA (9a ed.)

Zeithaml, Valarie A., et al. Services Marketing: Integrating Customer Focus Across the Firm. Seventh edition. McGraw-Hill Education, 2018.