एपीए उद्धरण

Zeithaml, V. A. (1996). Services marketing. New York: McGraw Hill.

शिकागो स्टाइल उद्धरण

Zeithaml, Valarie A. Services Marketing. New York: McGraw Hill, 1996.

एमएलए उद्धरण

Zeithaml, Valarie A. Services Marketing. New York: McGraw Hill, 1996.