Cita APA

Callan, S., & Thomas, J. M. (2004). Environmental economics & management: Theory, policy, and applications (3rd ed.). Thomson/South-Western.

Citación estilo Chicago

Callan, Scott, and Janet M. Thomas. Environmental Economics & Management: Theory, Policy, and Applications. 3rd ed. Mason, Ohio: Thomson/South-Western, 2004.

Cita MLA

Callan, Scott, and Janet M. Thomas. Environmental Economics & Management: Theory, Policy, and Applications. 3rd ed. Thomson/South-Western, 2004.