Perman, R., Ma, Y., Common, M., Maddison, D., & McGlivray, J. (2011). Natural resource and environmental economics (Forth edition.). Pearson Addison Wesley.
Chicago Style (17th ed.) CitationPerman, Roger, Yue Ma, Michael Common, David Maddison, and James McGlivray. Natural Resource and Environmental Economics. Forth edition. Harlow, Essex ; New York: Pearson Addison Wesley, 2011.
ציטוט MLAPerman, Roger, et al. Natural Resource and Environmental Economics. Forth edition. Pearson Addison Wesley, 2011.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.