Columbia subject headings:
Air traffic control, Bilingual--Political aspects--Canada.
Air traffic control, Bilingual--Québec (Province)
Canada--English-French relations.
Language policy--Canada.
Harvard subject headings:
Air traffic control, Bilingual--Canada.
Air traffic control, Bilingual--Political aspects--Canada.
Air traffic control, Bilingual--Québec (Province)
Canada--English-French relations.
Language policy--Canada.
Princeton subject headings:
Air traffic control, Bilingual--Political aspects--Canada.
Air traffic control, Bilingual--Quebec (Province).
Canada--English-French relations.
Language policy--Canada.