Columbia subject headings:
Land use--Planning--Illinois--Lake Co.
Land use--United States.
Zoning--Illinois--Lake Co.
Zoning--United States.
Harvard subject headings:
Land subdivision--Law and legislation--United States
Zoning law--United States.
Zoning law.
Zoning.
Princeton subject headings:
Land subdivision--United States.
Land use--United States.
Zoning--Law and legislation--Illinois--Lake County.
Zoning--United States.