APA (7th ed.) Citation

Karpagam, M. (1999). Environmental economics: A textbook (Rev. ed.). Sterling Publishers.

Chicago Style (17th ed.) Citation

Karpagam, M. Environmental Economics: A Textbook. Rev. ed. New Delhi: Sterling Publishers, 1999.

MLA (9th ed.) Citation

Karpagam, M. Environmental Economics: A Textbook. Rev. ed. Sterling Publishers, 1999.