APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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