APA (7th ed.) Zitazioa

Perman, R., Ma, Y., & Common, M. (2003). Natural resource and environmental economics (3rd ed.). Financial Times Prentice Hall.

Chicago Style (17th ed.) Zitazioa

Perman, Roger, Yue Ma, eta Michael Common. Natural Resource and Environmental Economics. 3rd ed. Harlow, England: Financial Times Prentice Hall, 2003.

MLA (9th ed.) Zitazioa

Perman, Roger, et al. Natural Resource and Environmental Economics. 3rd ed. Financial Times Prentice Hall, 2003.