Columbia subject headings:
Harvard subject headings:
Airplanes, Military.
Europe--Defenses.
Guided missiles.
Navies.
North Atlantic Treaty Organization--Armed Forces.
Warsaw Treaty Organization--Armed Forces.
Princeton subject headings:
Airplanes, Military.
Europe--Defenses.
Guided missiles.
Navies.
North Atlantic Treaty Organization--Armed Forces.
Warsaw Treaty Organization--Armed Forces.