Columbia subject headings:
Aluminum industry and trade.
Mineral industries--United States.
Natural resources--United States.
Recycling (Waste, etc.)
Harvard subject headings:
Aluminum industry and trade--Case studies.
Mineral industries--Waste disposal--Law and legislation--United States.
Natural resources--Law and legislation--United States
Recycling (Waste, etc.)--Law and legislation--United States.
United States. Resource Conservation and Recovery Act of 1976.
Princeton subject headings: