Columbia subject headings:
Harvard subject headings:
Aeronautics, Military--Portugal--History.
Portugal. Força Aérea--Officers--Biography.
Portugal. Força Aérea--Parachute troops.
Princeton subject headings:
Aeronautics, Military--Portugal--History.
Portugal. Força Aérea--Officers--Biography.
Portugal. Força Aérea--Parachute troops.