Deismireacht APA

Verma, P. S., & Agarwal, V. K. (2004). Environmental biology: Principles of ecology. S. Chand & Co.

Chicago Edition Citation

Verma, P. S., and V. K. Agarwal. Environmental Biology: Principles of Ecology. New Delhi: S. Chand & Co, 2004.

Deismireacht MLA

Verma, P. S., and V. K. Agarwal. Environmental Biology: Principles of Ecology. S. Chand & Co, 2004.

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