Columbia subject headings:
Energy policy.
Mineral industries--Government policy.
National security.
Raw materials--Government policy.
Strategic materials--Government policy.
Harvard subject headings:
Energy policy
Mineral industries--Government policy.
National security.
Raw materials--Government policy.
Strategic materials--Government policy.
Princeton subject headings:
Energy policy.
Mineral industries--Government policy.
National security.
Raw materials--Government policy.
Strategic materials--Government policy.