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Senate Hearing, 91st Congress - National Science Foundation authorization, 1970: hearing before the Special Subcommittee on the National Science Foundation of the Committee on Labor and Public Welfare, United States Senate, Ninety-first Congress, first session, on S. 1856, to authorize appropriations for activities of National Science Foundation, and for other purposes; S. 1857, to authorize appropriations for activities of the National Science Foundation, pursuant to Public Law 81-507, as amended, May 7, 1969.