Columbia subject headings:
Land use--Canada--Congresses.
Land use--Government policy--Canada--Congresses.
Land use--Government policy--United States--Congresses.
Land use--United States--Congresses.
Harvard subject headings:
Land use--Canada--Congresses.
Land use--Government policy--Canada--Congresses.
Land use--Government policy--United States--Congresses.
Land use--United States--Congresses.
Princeton subject headings:
Land use--Canada--Congresses.
Land use--Government policy--Canada--Congresses.
Land use--Government policy--United States--Congresses.
Land use--United States--Congresses.