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House Hearing, 89th Congress - A bill to amend the National Science Foundation act of 1950: hearings before the Subcommittee on Science, Research, and Development of the Committee on Science and Astronautics, U.S. House of Representatives, Eighty-ninth Congress, second session, on H.R. 13696, superseded by H.R. 14838, April 19, 20, and 21, 1966.