Zeithaml, V. (2000). services marketing: Integrating customer focus across the firm (2nd.). TMH.
Citazione stile Chigago Style (17a edizione)Zeithaml, Valeria. Services Marketing: Integrating Customer Focus Across the Firm. 2nd. New delhi: TMH, 2000.
Citatione MLA (9a ed.)Zeithaml, Valeria. Services Marketing: Integrating Customer Focus Across the Firm. 2nd. TMH, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.