Field, B. C. (2008). Natural resources economics an introduction second edition. Waveland Press.
Chicago (17e ed.) BronvermeldingField, Barry C. Natural Resources Economics an Introduction Second Edition. Waveland Press, 2008.
MLA (8e ed.) BronvermeldingField, Barry C. Natural Resources Economics an Introduction Second Edition. Waveland Press, 2008.
Let op: Deze citaties zijn niet altijd 100% accuraat.