Cita APA (7th ed.)

Hanley, N., Shogren, J. F., & White, B. (2001). Introduction to environmental economics. Oxford University Press.

Cita Chicago (17th ed.)

Hanley, Nick, Jason F. Shogren, i Ben White. Introduction to Environmental Economics. Oxford: Oxford University Press, 2001.

Cita MLA (9th ed.)

Hanley, Nick, et al. Introduction to Environmental Economics. Oxford University Press, 2001.