Hydrogen reduction of galena and sphalerite / by J.D. Spagnola.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington, D.C.] :
U.S. Department of the Interior, Bureau of Mines,
1965.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
6662. |
| Subjects: |