APA (7th ed.) Citation

Kumar, H. D. (1990). Modern concepts of ecology (2nd ed.). Vikas Publishing House.

Chicago Style (17th ed.) Citation

Kumar, H. D. Modern Concepts of Ecology. 2nd ed. New Delhi: Vikas Publishing House, 1990.

MLA (9th ed.) Citation

Kumar, H. D. Modern Concepts of Ecology. 2nd ed. Vikas Publishing House, 1990.