Arches National Park, Utah : Hearings before the Subcommittees on Public Lands and National Parks and Recreation of the Committee on Interior and Insular Affairs, House of Representatives, Ninety-first Congress to establish the Arches National Park in the State of Utah, and for other purposes, hearings held in Moab, Utah May 30, 1969 [and] Washington, D.C. September 10, 1970. (United States Government Printing Office,, 1970)