Não informado. (1982). Bibliography of Economic Geology. Geosystems Publications.
Chicagoスタイル(17版)引用形式Não informado. Bibliography of Economic Geology. London: Geosystems Publications, 1982.
MLA(8版)引用形式Não informado. Bibliography of Economic Geology. Geosystems Publications, 1982.
警告: この引用は必ずしも正確ではありません.