Cita APA (7th ed.)

Zeithaml, V. A. (2013). Services marketing: Integrating customer focus across the firm. McGraw Hill Education..

Cita Chicago (17th ed.)

Zeithaml, Valarie A. Services Marketing: Integrating Customer Focus Across the Firm. New Delhi: McGraw Hill Education., 2013.

Cita MLA (9th ed.)

Zeithaml, Valarie A. Services Marketing: Integrating Customer Focus Across the Firm. McGraw Hill Education., 2013.