Published in separate English, French, Russian and Spanish editions.
Title from cover.
Vol. for 1986, also called the 8th in the triennial series, covers 1975-1985. The subsequent volume 1978 to the year 2000, also called the 9th in the triennial series, covers 1978-1988, with forecasts to the year 2000.
Title
The economic situation of air transport.
Imprint
Montreal, Canada : International Civil Aviation Organization, 1986-