एपीए उद्धरण

Raj, G., & Trivedi, P. R. (1992). Encyclopaedia of Environmental sciences.

शिकागो स्टाइल उद्धरण

Raj, Gurdeep, और P R. Trivedi. Encyclopaedia of Environmental Sciences. New Delhi, Akashdeep, 1992.

एमएलए उद्धरण

Raj, Gurdeep, और P R. Trivedi. Encyclopaedia of Environmental Sciences. 1992.