Cita APA (7th ed.)

Zeithaml Valarie A. & Bitner Mary Jo. (2005). Services Marketing, Integrating Customer Focus Across the Firm (3rd.). Tata Mc Graw Hill Publishing.

Cita Chicago (17th ed.)

Zeithaml Valarie A. i Bitner Mary Jo. Services Marketing, Integrating Customer Focus Across the Firm. 3rd. New Delhi: Tata Mc Graw Hill Publishing, 2005.

Cita MLA (9th ed.)

Zeithaml Valarie A. i Bitner Mary Jo. Services Marketing, Integrating Customer Focus Across the Firm. 3rd. Tata Mc Graw Hill Publishing, 2005.