Columbia subject headings:
Pollution--Germany (West)--History.
Recycling (Waste, etc.)--Social aspects--Germany (West)
Refuse and refuse disposal--Social aspects--Germany (West)
Salvage (Waste, etc.)--Germany (West)--History.
Harvard subject headings:
Pollution--Germany (West)--History.
Recycling (Waste, etc.)--Social aspects--Germany (West)--History.
Refuse and refuse disposal--Social aspects--Germany (West)--History.
Salvage (Waste, etc.)--Germany (West)--History.
Princeton subject headings:
Pollution--Germany (West)--History.
Recycling (Waste, etc.)--Social aspects--Germany (West)--History.
Refuse and refuse disposal--Social aspects--Germany (West)--History.
Salvage (Waste, etc.)--Germany (West)--History.