Cita APA (7th ed.)

Zeithaml, V. (2000). services marketing: Integrating customer focus across the firm (2nd.). TMH.

Cita Chicago (17th ed.)

Zeithaml, Valeria. Services Marketing: Integrating Customer Focus Across the Firm. 2nd. New delhi: TMH, 2000.

Cita MLA (9th ed.)

Zeithaml, Valeria. Services Marketing: Integrating Customer Focus Across the Firm. 2nd. TMH, 2000.