APA引文

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引文

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