Aeronautics and air traffic control
By: by G. B. Litchford. Prepared by Litchford Systems for National Aeronautics and Space Administration.
Contributors: Litchford Systems.; United States. National Aeronautics and Space Administration.
Series: NASA contractor report. NASA CR-1833; NASA contractor report ;; NASA CR-1833.
Publisher: [National Aeronautics and Space Administration; for sale by the National Technical Information Service, Springfield, Va.]
Published: 1971
Place of publication: Washington
Language: eng
Number of pages: 189
Subjects: Air traffic control
Notes: Cover title.