APA (7th ed.) Citation

Raj , G. (1997). Encyclopaedia of environmental sciences. Akashdeep.

Chicago Style (17th ed.) Citation

Raj , Gurdeep. Encyclopaedia of Environmental Sciences. New Delhi: Akashdeep, 1997.

MLA (9th ed.) Citation

Raj , Gurdeep. Encyclopaedia of Environmental Sciences. Akashdeep, 1997.