Não informado. (2010). The School of Mines Quarterly. Columbia University.
Chicagoスタイル(17版)引用形式Não informado. The School of Mines Quarterly. New York: Columbia University, 2010.
MLA(8版)引用形式Não informado. The School of Mines Quarterly. Columbia University, 2010.
警告: この引用は必ずしも正確ではありません.