Hanley, N., Shogren, J. F., & White, B. (2001). Introduction to environmental economics. Oxford University Press.
Chicago Style (17th ed.) ZitazioaHanley, Nick, Jason F. Shogren, eta Ben White. Introduction to Environmental Economics. Oxford: Oxford University Press, 2001.
MLA (9th ed.) ZitazioaHanley, Nick, et al. Introduction to Environmental Economics. Oxford University Press, 2001.