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House Hearing, 92nd Congress - 1972 National Science Foundation authorization: hearings before the Committee on Science and Astronautics and the Subcommittee on Science, Research, and Development, U.S. House of Representatives, Ninety-second Congress, first session, on H.R. 4743 (superseded by H.R. 7960), February 25; March 5, 23, 24, 25, 26, 30; April 6, 7, 1971.