|Author:||Hays, Samuel P.|
|Title:||Conservation and the gospel of efficiency: the progressive conservation movement, 1890-1920|
|Publication Info:||Pittsburgh: University of Pittsburgh, Digital Research Library
|Series:||Harvard historical monographs, 40, University of Pittsburgh Press, University of Pittsburgh|
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Conservation and the gospel of efficiency the progressive conservation movement, 1890-1920
Hays, Samuel P.
Cambridge: Harvard University Press, 1959
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Conservation of natural resources--United States--History.
Environmental policy--United States--History.
Conservation and the gospel of efficiency: the progressive conservation movement, 1890-1920