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Start Over You searched for: Author Mines Bureau Remove constraint Author: Mines Bureau Publish Year Decade 1970 - 1979 Remove constraint Publish Year Decade: 1970 - 1979

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61. Aluminum and bauxite in 1975.

62. Beryllium in 1975.

63. Cadmium in 1975.

64. Cesium and rubidium in 1975.

65. Copper in 1975.

67. Clays in 1974.

69. Cement in 1974.