APA-viite (7. p.)

Perman, R. (2003). Natural resource and environmental economics (3rd ed.). Pearson Addison Wesley.

Chicago-viite (17. p.)

Perman, Roger. Natural Resource and Environmental Economics. 3rd ed. Harlow, Essex, Eng: Pearson Addison Wesley, 2003.

MLA-viite (9. p.)

Perman, Roger. Natural Resource and Environmental Economics. 3rd ed. Pearson Addison Wesley, 2003.