Withagen, C. (1985). Economic theory and international trade in natural exhaustible resources. Springer-Verlag.
Chicago (17e ed.) BronvermeldingWithagen, Cees. Economic Theory and International Trade in Natural Exhaustible Resources. Berlin: Springer-Verlag, 1985.
MLA (9e ed.) BronvermeldingWithagen, Cees. Economic Theory and International Trade in Natural Exhaustible Resources. Springer-Verlag, 1985.
Let op: Deze citaties zijn niet altijd 100% accuraat.