एपीए उद्धरण

Chopra, R. (1990). Office management/7e (7th ed.). Himalaya Publishing House.

शिकागो स्टाइल उद्धरण

Chopra, R.K. Office Management/7e. 7th ed. Bombay: Himalaya Publishing House, 1990.

एमएलए उद्धरण

Chopra, R.K. Office Management/7e. 7th ed. Himalaya Publishing House, 1990.