Columbia subject headings:
Aeronautics, Commercial--Law and legislation--European Economic Community countries.
Aeronautics, Commercial--Law and legislation--United States.
Aeronautics, Commercial--United States--Foreign ownership.
Airlines--Foreign ownership--Government policy--United States.
Airlines--United States--Foreign ownership.
Competition--United States.
Harvard subject headings:
Aeronautics, Commercial--Law and legislation--European Economic Community countries.
Aeronautics, Commercial--Law and legislation--United States
Aeronautics, Commercial--United States--Foreign ownership.
Airlines--Foreign ownership--Government policy--United States.
Airlines--United States--Foreign ownership.
Competition--United States
Princeton subject headings:
Aeronautics, Commercial--Law and legislation--European Economic Community countries.
Aeronautics, Commercial--Law and legislation--United States.
Aeronautics, Commercial--United States--Foreign ownership.
Airlines--Foreign ownership--Government policy--United States.
Airlines--United States--Foreign ownership.
Competition--United States.