APA
Zaithaml V. A. a. o., . (2003). Service Marketing. New Delhi: Academic Faundation.
Chicago
Zaithaml Valarie A and other, . 2003. Service Marketing. New Delhi: Academic Faundation.
Harvard
Zaithaml V. A. a. o., . (2003). Service Marketing. New Delhi: Academic Faundation.
MLA
Zaithaml Valarie A and other, . Service Marketing. New Delhi: Academic Faundation. 2003.