Bhardwaji, N., & Brij Gopal. (1979). Elements of ecology. Vikas publishing house Pvt Ltd.
Chicago Edition CitationBhardwaji, N., and Brij Gopal. Elements of Ecology. New Delhi: Vikas publishing house Pvt Ltd, 1979.
MLA Edition CitationBhardwaji, N., and Brij Gopal. Elements of Ecology. Vikas publishing house Pvt Ltd, 1979.
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