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Growth and development of nonmetallic mineral industries
The present status of the mineral industry
Minor mineral fertilizer materials
The Bureau of Mines and mineral utilization
Strategic minerals investigations :procedure followed by the Bureau of Mines
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Published Year
1930-1939 (5) *
Subject
Mines and mineral resources (5) *
Fertilizers (1)
Mineral industries (1)
Mineral industries--Economic aspects (1)
Mining engineering (1)
Author
Bowles, Oliver, (1)
Finch, John W. (1)
Finch, John Wellington, (1)
Johnson, Bertrand Leroy. (1)
Justice, C. W. (1)
Turner, Scott. (1)
