Oversight, FAA R. & D. programs : hearing before the Subcommittee on Transportation, Aviation, and Weather of the Committee on Science and Technology, U.S. House of Representatives, Ninety-fifth Congress, second session, August 24, 1978.
United States.Congress.House.Committee on Science and Technology.Subcommittee on Transportation, Aviation, and Weather.
Washington : U.S. Govt. Print. Off.,
1978 i.e. 1979.
United States. Federal Aviation Administration
Air traffic control