Não informado. (1912). Skillings mining review. Skillings Mining Review.
Chicagoスタイル(17版)引用形式Não informado. Skillings Mining Review. Duluth, Minn: Skillings Mining Review, 1912.
MLA(8版)引用形式Não informado. Skillings Mining Review. Skillings Mining Review, 1912.
警告: この引用は必ずしも正確ではありません.