Milling methods and costs at the Black Hawk concentrator, Hanover, New Mexico / by Ira L. Wright.
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Format: | Government Document Book |
Language: | English |
Published: |
[Washington, D.C.?] :
U.S. Dept. of Commerce, Bureau of Mines,
1930.
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Series: | Information circular (United States. Bureau of Mines) ;
6359. |
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