Concession operations in the national park system : oversight hearings before the Subcommittee on National Parks and Recreation of the Committee on Interior and Insular Affairs, House of Representatives, Ninety-fourth Congress, second session, on National park concession policy act of 1965 and concession operations in the national park system, hearings held in Washington, D.C., May 21, 24, 25, and June 7, 1976
United States, no. 94-58
iv, 1137 pages : illustrations ; 24 cm
2999085
Hearings held May 21-June 7, 1976