Cita APA (7th ed.)

Thomas, J. M., & Callan, S. J. (2010). Environmental economics: Applications, policy, and theory (Fifth edition.). South-Western Cengage Learning.

Cita Chicago (17th ed.)

Thomas, Janet M., i Scott J. Callan. Environmental Economics: Applications, Policy, and Theory. Fifth edition. United States: South-Western Cengage Learning, 2010.

Cita MLA (9th ed.)

Thomas, Janet M., i Scott J. Callan. Environmental Economics: Applications, Policy, and Theory. Fifth edition. South-Western Cengage Learning, 2010.