77th session - International Civil Aviation Organization : Montreal, 25 September - 15 December 1972 ; action of the council
Session. International Civil Aviation Organization ; 77 ; 1972 ; Montreal Session. International Civil Aviation Organization ; 77 (Montreal) : 1972.09.25-12.15
Doc ; 9078
1974
VIII, 79 S.
Konferenzband
Englisch