. . . "National Airspace System Plan hearing before the Subcommittee on Aviation of the Committee on Commerce, Science, and Transportation, United States Senate, Ninety-seventh Congress, second session, review of the Federal Aviation Administration's National Airspace System Plan (NASP) with particular emphasis on the first five years of the program, June 24, 1982"@en . . . . "National Airspace System Plan hearing before the Subcommittee on Aviation of the Committee on Commerce, Science, and Transportation, United States Senate, Ninety-seventh Congress, second session on review of the Federal Aviation Administration's National Airspace System Plan (NASP) with particular emphasis on the first five years of the program, June 24, 1982"@en . . . . . "National Airspace System Plan : hearing before the Subcommittee on Aviation of the Committee on Commerce, Science, and Transportation, United States Senate, Ninety-seventh Congress, second session on review of the Federal Aviation Administration's National Airspace System Plan (NASP) with particular emphasis on the first five years of the program, June 24, 1982"@en . . . . .