Columbia subject headings:
Greece--Politics and government--1974-
Portugal--Politics and government--1974-
Spain--Politics and government--1975-1982.
Harvard subject headings:
Greece--Politics and government--1974-
Portugal--Politics and government--1974-
Spain--Politics and government--1975-1982.
Princeton subject headings:
Greece--Politics and government--1974-
Portugal--Politics and government--1974-
Spain--Politics and government--1975-.