APA (7th ed.) Citation

Santra, S. C. (2011). Environmental science (3rd ed.). New Central Book Agency.

Chicago Style (17th ed.) Citation

Santra, S. C. Environmental Science. 3rd ed. Kolkata: New Central Book Agency, 2011.

MLA (9th ed.) Citation

Santra, S. C. Environmental Science. 3rd ed. New Central Book Agency, 2011.