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Start Over You searched for: Author Mines Bureau Remove constraint Author: Mines Bureau Catalog Issue Year Decade 1930 - 1939 Remove constraint Catalog Issue Year Decade: 1930 - 1939

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1802. Bauxite and aluminum in 1928.

1804. Cement in 1928; by B. W. Bagley.

1809. Stone in 1928; by A. T. Coons.