Phosphate rock : (in two parts). 1, Mining, beneficiation, and marketing / by E. Robert Ruhlman.
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Other title: | Mining, beneficiation, and marketing. |
Format: | Government Document Book |
Language: | English |
Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
1958.
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Series: | Information circular (United States. Bureau of Mines) ;
7814. |
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