Progress reports--Metallurgical Division. 31, Ore-dressing studies : flotation of Southern Illinois lead-zinc-fluorspar ores / by J.B. Clemmer [and others]
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| Other title: | Ore-dressing studies. Flotation of Southern Illinois lead-zinc-fluorspar ores. |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1939.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
3437. |
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