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Senate Hearing, 92nd Congress - Closed Basin Division, San Luis Valley Project, Colorado: hearing before the Subcommittee on Water and Power Resources of the Committee on Interior and Insular Affairs, United States Senate, Ninety-second Congress, second session, on S. 520, a bill to authorize the construction, operation, and maintenance of the Closed Basin Division, San Luis Valley Project, Colorado, and for other purposes, June 26, 1972.