एपीए उद्धरण

Sinha,P C. (1998). Environmental policies. Anmol Publications.

शिकागो स्टाइल उद्धरण

Sinha,P C. Environmental Policies. New Delhi: Anmol Publications, 1998.

एमएलए उद्धरण

Sinha,P C. Environmental Policies. Anmol Publications, 1998.