Air traffic controller staffing standards : hearing before the Subcommittee on Investigation and Oversight of the Committee on Public Works and Transportation, House of Representatives, one hundredth Congress, first session, November 18, 1987.
United States.Congress.House.Committee on Public Works and Transportation.Subcommittee on Investigations and Oversight.
Washington : U.S.G.P.O.,
1988.
100-46
Air traffic controllers