The Evolution of the Conservation Movement
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Contains important sources in the development of the conservation movement, including 62 books and pamphlets, 140 Federal statutes and Congressional resolutions, 34 additional legislative documents, excerpts from the Congressional Globe and the Congressional Record, 360 Presidential proclamations, 170 prints and photographs, 2 historic manuscripts, and 2 motion pictures.
Despite its breadth, it lacks some of the key sources.
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