1 نتائج 'civil aviation'
Civil aviation (en)
Aviación civil (es), Гражданская авиация (ru), طيران مدني (ar), Aviation civile (fr)
Air transport
Airports
Politics, law and economics
> Services
Aviación civil (es), Гражданская авиация (ru), طيران مدني (ar), Aviation civile (fr)
http://vocabularies.unesco.org/thesaurus/concept1960