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Start Over You searched for: Publish Year Decade 1960 - 1969 Remove constraint Publish Year Decade: 1960 - 1969 Sudoc Stem I 28.37/a Remove constraint Sudoc Stem: I 28.37/a

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84. Ferroalloys; by John W. Thatcher.

85. Iron ore; by F. E. Brantley.

88. Salt; by William H. Kerns.

89. Asbestos; by Timothy C.

90. Vermiculite; by Timothy C.