एपीए उद्धरण

Chhatwal, G. R. (1997). Encyclopaodia of Environment alanalysis. Anmol.

शिकागो स्टाइल उद्धरण

Chhatwal, Gurdeep R. Encyclopaodia of Environment Alanalysis. New Delhi: Anmol, 1997.

एमएलए उद्धरण

Chhatwal, Gurdeep R. Encyclopaodia of Environment Alanalysis. Anmol, 1997.