Additions to the National Wilderness Preservation System :
hearing before the Subcommittee on Public Lands of the Committee on Interior and Insular Affairs, House of Representatives, Ninety-ninth Congress, first session ...

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Full view   pt.1 Pennsylvania State University
Full view   pt.2 Pennsylvania State University
Full view   pt.3 Pennsylvania State University
Full view   pt.4 Pennsylvania State University
Full view   pt.5 Pennsylvania State University