ICAO Language Proficiency
The Controller ; 52 , 2 ; 14-14
2013
Aufsatz (Zeitschrift)
Unbekannt
Proposed ICAO Language Proficiency Requirements
British Library Conference Proceedings | 2002
|TEST OF ENGLISH FOR AVIATION PERSONNEL TO MEET ICAO LANGUAGE PROFICIENCY REQUIREMENTS
DOAJ | 2012
|British Library Conference Proceedings | 2007
|Luftfahrtkarte ICAO = Aeronautical chart ICAO / ICAO ... ; NO 51/6: Hannover
GWLB - Gottfried Wilhelm Leibniz Bibliothek | 1962
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