Kumar, G. W. W. a. R. Options for developing countries in mining development. Macmillan Press.
Chicagoスタイル(17版)引用形式Kumar, Grantley W. Walrond and Raj. Options for Developing Countries in Mining Development. Macmillan Press.
MLA(8版)引用形式Kumar, Grantley W. Walrond and Raj. Options for Developing Countries in Mining Development. Macmillan Press.
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