Cita APA

Bhardwaji, N., & Brij Gopal. (1979). Elements of ecology. Vikas publishing house Pvt Ltd.

Chicago Edition Citation

Bhardwaji, N., i Brij Gopal. Elements of Ecology. New Delhi: Vikas publishing house Pvt Ltd, 1979.

Cita MLA

Bhardwaji, N., i Brij Gopal. Elements of Ecology. Vikas publishing house Pvt Ltd, 1979.