APA
Subramanian V, . (2002). <A>Textbook in environmental science. New Delhi: Narosa Publishing House.
Chicago
Subramanian V, . 2002. <A>Textbook in environmental science. New Delhi: Narosa Publishing House.
Harvard
Subramanian V, . (2002). <A>Textbook in environmental science. New Delhi: Narosa Publishing House.
MLA
Subramanian V, . <A>Textbook in environmental science. New Delhi: Narosa Publishing House. 2002.
