Columbia subject headings:
Harvard subject headings:
Canada--Economic policy--Congresses.
Canada--Economic policy.
Canada--Foreign economic relations--United States--Congresses.
Canada--Foreign relations--United States.
International economic integration--Congresses.
International economic integration.
North America--Economic integration--Congresses.
United States--Economic policy--Congresses.
United States--Economic policy.
United States--Foreign economic relations--Canada--Congresses.
United States--Foreign relations--Canada.
Princeton subject headings:
Canada--Economic policy--Congresses.
Canada--Foreign economic relations--United States--Congresses.
North America--Economic integration--Congresses.
United States--Economic policy--Congresses.
United States--Foreign economic relations--Canada--Congresses.