APA Edition Citation

Callan, E. J., & Thomas, J. M. (2013). Environmental economics & management: Theory, policy, and applications (6th ed.). Cengage Learning.

Chicago Edition Citation

Callan, Ecott J., and Janet M. Thomas. Environmental Economics & Management: Theory, Policy, and Applications. 6th ed. New Delhi: Cengage Learning, 2013.

MLA Edition Citation

Callan, Ecott J., and Janet M. Thomas. Environmental Economics & Management: Theory, Policy, and Applications. 6th ed. Cengage Learning, 2013.