APA (7th ed.) Citation

Asthana, D. K., & Asthana, M. (2001). Environment. S. Chand & Co..

Chicago Style (17th ed.) Citation

Asthana, D. K., and Meera Asthana. Environment. New Delhi: S. Chand & Co., 2001.

MLA (9th ed.) Citation

Asthana, D. K., and Meera Asthana. Environment. S. Chand & Co., 2001.

Warning: These citations may not always be 100% accurate.