एपीए उद्धरण

Basu, S., & De, A. (2005). Questions and answers in environmental science. Universities press.

शिकागो स्टाइल उद्धरण

Basu, S.K, और A.K De. Questions and Answers in Environmental Science. Hyderabad: Universities press, 2005.

एमएलए उद्धरण

Basu, S.K, और A.K De. Questions and Answers in Environmental Science. Universities press, 2005.