MEĐUNARODNI DAN CIVILNOG ZRAKOPLOVSTVA Datum 7.12. Izvori UNESCO-ov kalendar za 1997. godinu Opis International Civil Aviation Day. Linkovi http://www.icao.int/icao/en/aviation_day.htm http://www.timeanddate.com/holidays/un/international-civil-aviation-day https://en.wikipedia.org/wiki/International_Civil_Aviation_Day