University of Texas at Austin. Bureau of Economic Geology. Geological circular. University of Texas at Austin. Bureau of Economic Geology.
Chicagoスタイル(17版)引用形式University of Texas at Austin. Bureau of Economic Geology. Geological Circular. Austin, Tex.: University of Texas at Austin. Bureau of Economic Geology.
MLA(8版)引用形式University of Texas at Austin. Bureau of Economic Geology. Geological Circular. University of Texas at Austin. Bureau of Economic Geology.
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