Grand Canyon Protection Act of 1990 : hearings before the Subcommittee on Water, Power, and Offshore Energy Resources and the Subcommittee on National Parks and Public Lands of the Committee on Interior and Insular Affairs, House of Representatives, One Hundred First Congress, second session on H.R. 4498 to amend the Colorado River storage project act ... : hearings held in Washington, DC, April 26 and May 22, 1990.
Coverage: Washington : U.S. G.P.O. : 1991.