Bureau of Mines research;a summary of significant results in mining, metallurgy and mineral economics.

Year: 1971
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]
Subject: Mines and mineral resources--Research--United States--Periodicals
Links: 1979-81
1979 (r:SP-2-80)
1971-75
1971-1974 1971-1974
1975-1978 1975-1978
1976-78
1976-79
1976-79
1978 (r:SP-7-79)
1979-1982 1979-1982
1980-82
1980 (r:SP-1-81)
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1982
1982-83
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1983-1987 1983-1987
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1987-1992 1987-1992
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1988-90
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1992
1992 (r:SP-4-92)

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