Columbia subject headings:
Ballistic missile defenses--Economic aspects--United States.
Ballistic missile defenses--United States--Costs.
Harvard subject headings:
Ballistic missile defenses--Economic aspects--United States.
Ballistic missile defenses--United States--Costs.
Deterrence (Strategy)--Costs.
Strategic Defense Initiative--Costs.
Strategic forces--United States--Costs.
United States--Armed Forces--Appropriations and expenditures.
Princeton subject headings:
Ballistic Air defenses, Military--Economic aspects--United States.
Strategic forces--Economic aspects--United States.
United States--Defenses--Economic aspects.