APA
Zaithaml V. A. a. o., . (2002). Service Marketing. New Delhi: Academic Faundation.
Chicago
Zaithaml Valarie A and other, . 2002. Service Marketing. New Delhi: Academic Faundation.
Harvard
Zaithaml V. A. a. o., . (2002). Service Marketing. New Delhi: Academic Faundation.
MLA
Zaithaml Valarie A and other, . Service Marketing. New Delhi: Academic Faundation. 2002.