APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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