APA (7th ed.) Citation

Leh, F. K., & Lak, R. K. (1974). Environment and pollutions: (sources, health effects, monitoring and control). Thomas.

Chicago Style (17th ed.) Citation

Leh, Francis K.V, and Richard K.C Lak. Environment and Pollutions: (sources, Health Effects, Monitoring and Control). Springfield: Thomas, 1974.

MLA (9th ed.) Citation

Leh, Francis K.V, and Richard K.C Lak. Environment and Pollutions: (sources, Health Effects, Monitoring and Control). Thomas, 1974.