Saline water conversion program : hearing, Ninety-second Congress, first session, on H.R. 5333, to authorize appropriations for the Saline Water conversion Program for fiscal year 1972, and for other purposes [and] H.R. 5334, to authorize the Secretary of the Interior to continue a program of research, development and demonstration of processes for the conversion of saline and other chemically contaminated water for beneficial use and for the treatment of saline and other chemically contaminated waste water to maintain or improve the quality of the natural waters, and for other purposes and related bills, hearing held April 27, 1971.