Preprint from the ... Bureau of Mines Minerals yearbook. Statistical summary.
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| Format: | Government Document Serial |
| Language: | English |
| Published: |
[Pittsburgh, Pa.] :
U.S. Dept. of the Interior, Bureau of Mines.
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| Subjects: |
Evans: US Documents (Annex 5th floor)
| Call Number: |
I 28.37/a:St 2/ |
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