Columbia subject headings:
Europe, Eastern--Politics and government--1945-1989.
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1989-
Harvard subject headings:
Europe, Eastern--Politics and government--1945-1989.
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1945-1980
Poland--Politics and government--1980-1989
Princeton subject headings:
Europe, Eastern--Politics and government--1945-
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1945-1980.
Poland--Politics and government--1980-1989.