APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (8th ed.) Atıf

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