Columbia subject headings:
Canada--Politics and government--1980-
Conservatism--Canada--History--20th century.
Conservatism--Great Britain--History--20th century.
Conservatism--United States--History--20th century.
Great Britain--Politics and government--1979-1997.
United States--Politics and government--1981-1989.
Harvard subject headings:
Canada--Politics and government--1980-
Conservatism--Canada--History--20th century.
Conservatism--Great Britain--History--20th century
Conservatism--United States--History--20th century
Great Britain--Politics and government--1979-1997.
United States--Politics and government--1981-1989.
United States--Politics and government--1989-
Princeton subject headings:
Canada--Politics and government--1980-
Conservatism--Canada--History--20th century.
Conservatism--Great Britain--History--20th century.
Conservatism--United States--History--20th century.
Great Britain--Politics and government--1979-1997.
United States--Politics and government--1981-.