एपीए उद्धरण

Trivedi, P. R. (2004). Ecology and environment. A. P. H. Publishing.

शिकागो स्टाइल उद्धरण

Trivedi, P. R. Ecology and Environment. New Delhi: A. P. H. Publishing, 2004.

एमएलए उद्धरण

Trivedi, P. R. Ecology and Environment. A. P. H. Publishing, 2004.