APA Edition Citation

Verma, P. S. A. (1995). Environmental biology: Principles of ecology (4.).

Chicago Edition Citation

Verma, P S; Agarwal. Environmental Biology: Principles of Ecology. 4. S Chand & Co. Ltd., New Delhi, 1995.

MLA Edition Citation

Verma, P S; Agarwal. Environmental Biology: Principles of Ecology. 4. 1995.

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