Columbia subject headings:
Environmental law--United States.
Forest conservation--United States.
Trees in cities--Law and legislation--United States.
Harvard subject headings:
Environmental law--United States
Land use--Law and legislation--United States
Local government--Law and legislation--United States
Trees in cities--Law and legislation--United States.
Princeton subject headings:
Environmental law--United States.
Forest conservation--United States.
Trees in cities--Law and legislation--United States.