Searching Books & More : "Conservation of natural resources"

Hays, Samuel P X
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Conservation and the gospel of efficiency; the progressive conservation movement, 1890-1920

Published: New York, Atheneum, 1969 [c1959]
Format: Print
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Conservation and the gospel of efficiency the progressive conservation movement, 1890-1920

Published: Pittsburgh, Pa. : University of Pittsburgh Press, 1999
Format: Electronic Resource, Remote
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