Columbia subject headings:
United States. Air Force--Weapons systems.
United States. Air Force. Strategic Air Command.
Harvard subject headings:
United States. Air Force--Weapons systems.
United States. Air Force. Strategic Air Command
United States. Air Force. Strategic Air Command--Operational readiness.
United States. Air Force. Strategic Air Command--Weapons systems.
Princeton subject headings:
United States. Air Force. Strategic Air Command--Operational readiness.
United States. Air Force. Strategic Air Command--Weapons systems.