APA aipamena

Thomas, J. M., & Callan,Scott. (2009). Environmental economics (India ed.). Cengage Learning.

Chicago Style aipamena

Thomas, Janet M., and Callan,Scott. Environmental Economics. India ed. New Dehli: Cengage Learning, 2009.

MLA aipamena

Thomas, Janet M., and Callan,Scott. Environmental Economics. India ed. Cengage Learning, 2009.

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