A Review of the economic situation of air transport, 1969-1979.
Contributors: International Civil Aviation Organization.
Series: ICAO circular ;; 158-AT/57
Publisher: International Civil Aviation Organization
Published: 1980
Place of publication: Montreal
Language: eng
Number of pages: 73
Subjects: Aeronautics, Commercial -- Statistics.
Notes: Includes bibliographical references.
Cover title.
"Approved by the Secretary General and published under his authority."