APA (7th ed.) Citation

Gupta, K., Gupta, A. K., & Gupta, S. (2008). Dictionary of Environment. Atlantic Publishers & Distributors (p) Ltd..

Chicago Style (17th ed.) Citation

Gupta, K.R, Ashish Kumar Gupta, and Suriti Gupta. Dictionary of Environment. New Delhi: Atlantic Publishers & Distributors (p) Ltd., 2008.

MLA (9th ed.) Citation

Gupta, K.R, et al. Dictionary of Environment. Atlantic Publishers & Distributors (p) Ltd., 2008.