Eichhorn, W. (1982). Economic theory of natural resources. Physica-Verlag.
Chicagoスタイル(17版)引用形式Eichhorn, W. Economic Theory of Natural Resources. Wurzburg: Physica-Verlag, 1982.
MLA(9版)引用形式Eichhorn, W. Economic Theory of Natural Resources. Physica-Verlag, 1982.
警告: この引用は必ずしも正確ではありません.