Perman, R. (2011). Natural resource and environmental economics (4th ed.). Pearson Education.
Chicago (17e ed.) BronvermeldingPerman, Roger. Natural Resource and Environmental Economics. 4th ed. Harlow, Essex, Eng: Pearson Education, 2011.
MLA (9e ed.) BronvermeldingPerman, Roger. Natural Resource and Environmental Economics. 4th ed. Pearson Education, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.