FAA's collision-avoidance program : hearings before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-fifth Congress, second session, December 7 and 8, 1978.
United States.Congress.House.Committee on Government Operations.Government Activities and Transportation Subcommittee.
Washington : U.S. Govt. Print Off.,
1979.
United States. Federal Aviation Administration
Airplanes