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Start Over You searched for: Publish Year Decade 1960 - 1969 Remove constraint Publish Year Decade: 1960 - 1969 Catalog Issue Year Decade 1970 - 1979 Remove constraint Catalog Issue Year Decade: 1970 - 1979

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1901. Industrial water use; by Willis G. Eichberger.

1903. study of Omaha, Nebr. meat-packing wastes.

1908. Gifford Pinchot National Forest.