APA (7th ed.) Citation

Chhatwal, G. R., Katyal, T., & Mehra, M. C. (1999). Encyclopedia of environmental pollution & its control: Environmental analysis, vol. 6. Anmol Publication Pvt Ltd.

Chicago Style (17th ed.) Citation

Chhatwal, G. R., T. Katyal, and M. C. Mehra. Encyclopedia of Environmental Pollution & Its Control: Environmental Analysis, Vol. 6. New Delhi: Anmol Publication Pvt Ltd, 1999.

MLA (9th ed.) Citation

Chhatwal, G. R., et al. Encyclopedia of Environmental Pollution & Its Control: Environmental Analysis, Vol. 6. Anmol Publication Pvt Ltd, 1999.