Enroute IFR air traffic survey
Subtitle: peak day, fiscal year 1970
By: [by Theodore L. Dalbow
Publisher: U.S. Dept. of Transportation, Federal Aviation Administration, Information and Statistics Division, Office of Management Services; [U.S. Govt. Print. Off.
Published: 1971
Place of publication: Washington
Language: eng
Number of pages: 203
Subjects: Air traffic control; Airports; Traffic control