Columbia subject headings:
Administrative agencies--Waste disposal--United States.
Environmental policy--United States.
Government purchasing--Environmental aspects--United States.
Government purchasing--United States.
Recycled products--United States.
Recycling (Waste, etc.)--Government policy--United States.
Recycling (Waste, etc.)--United States.
Waste minimization--Government policy--United States.
Harvard subject headings:
Government purchasing--United States.
Recycled products--United States.
Recycling (Waste, etc.)--United States.
Princeton subject headings:
Government purchasing--United States.
Recycled products--United States.
Recycling (Waste, etc.)--United States.