Report of proceedings of the National Transportation Safety Board into the midair collision problem, November 4 through 10, 1969
Subtitle: adopted: November 12, 1970.
Publisher: For sale by U.S. Dept. of Commerce, National Technical Information Service (NTIS), Springfield, Va.
Published: 1971
Place of publication: Washington
Language: eng
Number of pages: 136
Subjects: Aircraft accidents -- United States.; Aeronautics, Commercial -- United States.