Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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