APA ציטוט

Perman, R., Ma, Y., McGilvray, J., & Common, M. (2003). Natural resource and environmental economics (Third edition.). Pearson Education.

Chicago Style (17th ed.) Citation

Perman, Roger, Yue Ma, James McGilvray, and Michael Common. Natural Resource and Environmental Economics. Third edition. New York: Pearson Education, 2003.

ציטוט MLA

Perman, Roger, et al. Natural Resource and Environmental Economics. Third edition. Pearson Education, 2003.