Fourth meeting, Montreal 7-24 Nov., 1972
Subtitle: report.
Series: International Civil Aviation Organization.  Doc. 9052, ADISP/1
Publisher: International Civil Aviation Organization
Published: 1973
Place of publication: Montreal
Language: eng
Subjects: Aeronautics -- Communication systems -- Congresses; Aeronautics -- Communication systems -- Data processing -- Congresses
Notes: Cover title.