Perman, R. (2011). Natural resource and environmental economics (4th ed.). Pearson Education.
Chicagoスタイル(17版)引用形式Perman, Roger. Natural Resource and Environmental Economics. 4th ed. Harlow, Essex, Eng: Pearson Education, 2011.
MLA(9版)引用形式Perman, Roger. Natural Resource and Environmental Economics. 4th ed. Pearson Education, 2011.
警告: この引用は必ずしも正確ではありません.