Columbia subject headings:
Aeronautics and state--United States--Congresses.
Aeronautics--United States--International cooperation--Congresses.
United States. Civil Aeronautics Board.
Harvard subject headings:
Aeronautics, Commercial--Government policy--United States
United States. Civil Aeronautics Board--Reorganization.
United States. Civil Aeronautics Board.
Princeton subject headings:
United States. Civil Aeronautics Board--Reorganization.