Columbia subject headings:
Beverage containers--Law and legislation--Kentucky.
Litter (Trash)--Kentucky.
Recycling (Waste, etc.)--Kentucky.
Harvard subject headings:
Beverage containers--Law and legislation--Kentucky.
Containers--Recycling--Law and legislation--Kentucky.
Recycling (Waste, etc.)--Law and legislation--Kentucky.
Refuse and refuse disposal--Law and legislation--Kentucky.
Princeton subject headings:
Beverage containers--Law and legislation--Kentucky.
Containers--Recycling--Law and legislation--Kentucky.
Recycling (Waste, etc.)--Law and legislation--Kentucky.
Refuse and refuse disposal--Law and legislation--Kentucky.