APA
Scott J. Callan, Janet M. Thomas, . (2013). Environmental Economics and Management: Theory, Policy, and Applications. New Delhi: Cengage Learning.
Chicago
Scott J. Callan, Janet M. Thomas, . 2013. Environmental Economics and Management: Theory, Policy, and Applications. New Delhi: Cengage Learning.
Harvard
Scott J. Callan, Janet M. Thomas, . (2013). Environmental Economics and Management: Theory, Policy, and Applications. New Delhi: Cengage Learning.
MLA
Scott J. Callan, Janet M. Thomas, . Environmental Economics and Management: Theory, Policy, and Applications. New Delhi: Cengage Learning. 2013.