Extension and revision of the Export Administration Act of 1979 : hearings and markup before the Committee on Foreign Affairs and its Subcommittee on International Economic Policy and Trade, House of Representatives, Ninety-eighth Congress, first session, on H.R. 3231, February 24; March 1, 3, 8; April 5, 12, 13, 14, 28, 29; May 2, 4, 5, l8, 25, 26, 1983.