APA (7th ed.) Citation

M., K. (1991). Environmental economics: A textbook. Sterling Pub.

Chicago Style (17th ed.) Citation

M., Karpagam. Environmental Economics: A Textbook. New Delhi: Sterling Pub, 1991.

MLA (9th ed.) Citation

M., Karpagam. Environmental Economics: A Textbook. Sterling Pub, 1991.