एपीए उद्धरण

Valarie A., Z., Mary, J. B., & Dwayne D., G. (2021). Services Marketing: Intergrating Customer Focus Across the Firm. McGraw Hall.

शिकागो स्टाइल उद्धरण

Valarie A., Zeithaml, Jo Bitner Mary, और Gremler Dwayne D. Services Marketing: Intergrating Customer Focus Across the Firm. McGraw Hall, 2021.

एमएलए उद्धरण

Valarie A., Zeithaml, Jo Bitner Mary, और Gremler Dwayne D. Services Marketing: Intergrating Customer Focus Across the Firm. McGraw Hall, 2021.