Federal participation in saline water conversion : hearings before the Committee on Interior and Insular Affairs, United States Senate Eighty-ninth Congress, second session, and the subcommittee on Water and Power Resources, Ninetieth Congress, first session, on S. 3823, 89th Cong., and S. 270, 90th Cong., bills to provide for the participation of the Department of the Interior in the construction and operation of a large prototype desalting plant, and for other purposes, September 19, 1966 and January 24, 1967. (U.S. Govt. Print. Off, 1967)