Não informado. (1960). The Mining Engineer. Institution of Mining Engineers.
Chicagoスタイル(17版)引用形式Não informado. The Mining Engineer. London: Institution of Mining Engineers, 1960.
MLA(8版)引用形式Não informado. The Mining Engineer. Institution of Mining Engineers, 1960.
警告: この引用は必ずしも正確ではありません.