Παραπομπή σε μορφή APA (7η εκδ.)

Zeithaml Valarie A. & Bitner Mary Jo. (2003). Services marketing: Integrating customer focus across the firm (3rd ed.). Irwin/McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Zeithaml Valarie A. και Bitner Mary Jo. Services Marketing: Integrating Customer Focus Across the Firm. 3rd ed. Irwin/McGraw-Hill, 2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

Zeithaml Valarie A. και Bitner Mary Jo. Services Marketing: Integrating Customer Focus Across the Firm. 3rd ed. Irwin/McGraw-Hill, 2003.