APA aipamena

Zeithaml, V. A. B. (2011). Services Marketing: Integrating customer focus accross the firm (5 edition.).

Chicago Style aipamena

Zeithaml, Valarie A; Bitner. Services Marketing: Integrating Customer Focus Accross the Firm. 5 edition. Tata Mc Graw Hill: New Delhi, 2011.

MLA aipamena

Zeithaml, Valarie A; Bitner. Services Marketing: Integrating Customer Focus Accross the Firm. 5 edition. 2011.