Jackson C. F. & Hedges J. H. (1939). Metal-mining practice. Washington, United States Government Printing Office, 1939.
Chicagoスタイル(17版)引用形式Jackson C. F. , Hedges J. H. Metal-mining Practice. Washington, United States Government Printing Office, 1939, 1939.
MLA(9版)引用形式Jackson C. F. , Hedges J. H. Metal-mining Practice. Washington, United States Government Printing Office, 1939, 1939.
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