Dept. of Transportation, Federal Aviation Administration, Flight Services Division, Air Traffic Service1962.<629.1366-Uf29a>
国立国会図書館
U.S. Dept. of Transportation, Federal Aviation Administration, Information and Statistics Division, Office of Management Systems1959.<DK211-31>
国立国会図書館
U.S. Dept. of Transportation, Federal Aviation Administration, Information and Statistics Division, Office of Management Systems1959.<387.7-Uf29f>
国立国会図書館
U.S. Dept. of Transportation, Federal Aviation Administration, Office of Management Systems, Information and Statistics Division19uu.<DT693-2>
国立国会図書館
- 件名...-- Statistics. Airports -- United States -- Traffic control -- Statistics.