Establishment of a peace garden and minimum altitude for aircraft flying over National Park system units : hearing before the Subcommittee on Public Lands, National Parks and Forests of the Committee on Energy and Natural Resources, United States Senate, one hundredth Congress, first session on .... May 7, 1987.
United States.Congress.Senate.Committee on Energy and Natural Resources.Subcommittee on Public Lands, National Parks and Forests.
Washington : U.S.G.P.O.,
1987.
National parks and reserves
Peace movements