APA

Subrahmanyam N., Sambamurty A., . (2006). Ecology. New Delhi: Narosa Publishing House.

Chicago

Subrahmanyam N.S, Sambamurty A.V.S.S, . 2006. Ecology. New Delhi: Narosa Publishing House.

Harvard

Subrahmanyam N., Sambamurty A., . (2006). Ecology. New Delhi: Narosa Publishing House.

MLA

Subrahmanyam N.S, Sambamurty A.V.S.S, . Ecology. New Delhi: Narosa Publishing House. 2006.