APA
Zeithaml V. A. [. a., . (2008). Services marketing : integrating customer focus across the firm. Tata McGraw Hill, New Delhi: .
Chicago
Zeithaml Valarie A [et al], . 2008. Services marketing : integrating customer focus across the firm. Tata McGraw Hill, New Delhi: .
Harvard
Zeithaml V. A. [. a., . (2008). Services marketing : integrating customer focus across the firm. Tata McGraw Hill, New Delhi: .
MLA
Zeithaml Valarie A [et al], . Services marketing : integrating customer focus across the firm. Tata McGraw Hill, New Delhi: . 2008.