APA Citation

Verma, P., & Agarwal, V. (2007). Environmental biology: Principles of ecology. Delhi: S. Chandra.

Chicago Style Citation

Verma, P.S., and V.K Agarwal. Environmental Biology: Principles of Ecology. Delhi: S. Chandra, 2007.

MLA Citation

Verma, P.S., and V.K Agarwal. Environmental Biology: Principles of Ecology. Delhi: S. Chandra, 2007.

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