Columbia subject headings:
Canada--Economic conditions--1945---Periodicals.
Canada--Politics and government--1980---Periodicals.
United States--Economic conditions--1981-2001--Periodicals.
United States--Politics and government--1981-1989--Periodicals.
Harvard subject headings:
Canada--Economic conditions--1945---Periodicals.
Canada--Politics and government--1980---Periodicals.
United States--Economic conditions--1981-2001--Periodicals.
United States--Economic conditions--2001-2009--Periodicals.
United States--Politics and government--1989---Periodicals.
Princeton subject headings: