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Greensand
Minor mineral fertilizer materials
Nonmetallic minerals needed for national defense.
Nonmetallic minerals needed for national defense.
Trends in consumption and prices of chemical raw materials and fertilizers
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Published Year
1930-1939 (2)
1940-1949 (3)
Subject
Fertilizers (5) *
Nonmetallic minerals--United States (2)
Fertilizer industry--United States (1)
Greensand (1)
Mineral industries (1)
Mines and mineral resources (1)
Author
Bowles, Oliver, (1)
Johnson, Bertrand L. (1)
Johnson, Bertrand Leroy. (1)
O'Neill, Leo J. (1)
Tucker, Ethel M. (1)
Tyler, Paul M. (1)
