APA (7th ed.) Citation

Perman, R. (2011). Natural resource and environmental economics (4th ed.). Pearson Education.

Chicago Style (17th ed.) Citation

Perman, Roger. Natural Resource and Environmental Economics. 4th ed. Harlow, Essex, Eng: Pearson Education, 2011.

MLA (9th ed.) Citation

Perman, Roger. Natural Resource and Environmental Economics. 4th ed. Pearson Education, 2011.