एपीए उद्धरण

zeithaml,Valarie.A , B. a. P. (2013). Services marketing: Integret customer focus across the firm (06 Edition.).

शिकागो स्टाइल उद्धरण

zeithaml,Valarie.A , Bitner,Dwayne.D and Pandith,Ajay. Services Marketing: Integret Customer Focus Across the Firm. 06 Edition. Mc Graw Hill Education : New Delhi, 2013.

एमएलए उद्धरण

zeithaml,Valarie.A , Bitner,Dwayne.D and Pandith,Ajay. Services Marketing: Integret Customer Focus Across the Firm. 06 Edition. 2013.