APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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