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CONSERVATION IN THE DEPARTMENT OF THE INTERIOR. By Ray Lyman Wilbur Secretary and William Atherton Du Puy Executive Assistant.
Washington: United States Government Printing Office, 1931. 23x14.5 cm, pp. [i-ii: blank] [iii-vi] vii [vii] ix-xii 1-252 [253] [254-260: blank], illustrations, original pictorial tan cloth, stamped in brown and black. First edition. (#166871)
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