Zeithaml, V. A. B. (2003). Services Marketing: Integrating customer focus accross the firm (3 edition.).
Chicago Style citaatZeithaml, Valarie A; Bitner. Services Marketing: Integrating Customer Focus Accross the Firm. 3 edition. Tata Mc Graw Hill: New Delhi, 2003.
MLA citatieZeithaml, Valarie A; Bitner. Services Marketing: Integrating Customer Focus Accross the Firm. 3 edition. 2003.
Let op: Deze citaties zijn niet altijd 100% accuraat.