APA (7th ed.) Citation

Chhatwal, G. R., Mehra, M. C., & Katyal, T. (1989). Environmental Air Pollution and Its Control. Anmol Publications Pvt Ltd.

Chicago Style (17th ed.) Citation

Chhatwal, G. R., M. C. Mehra, and T. Katyal. Environmental Air Pollution and Its Control. New Delhi: Anmol Publications Pvt Ltd, 1989.

MLA (9th ed.) Citation

Chhatwal, G. R., et al. Environmental Air Pollution and Its Control. Anmol Publications Pvt Ltd, 1989.