APA Style

Trivedi, P, R, P., Raj, P, G. (1992). Encyclopaedia of environmental sciences (management of pollution control) vol.20 . New Delhi: Akashdeep Publising House.

MLA Style

Trivedi, Prof., R., P.., Raj, Prof., Gurdeep. "Encyclopaedia of environmental sciences (management of pollution control) vol.20". New Delhi: Akashdeep Publising House, 1992. Buku.