एपीए उद्धरण

Ranganathan S R. (1974). Business information service. Clive Bingley.

शिकागो स्टाइल उद्धरण

Ranganathan S R. Business Information Service. London: Clive Bingley, 1974.

एमएलए उद्धरण

Ranganathan S R. Business Information Service. Clive Bingley, 1974.