Columbia subject headings:
Harvard subject headings:
NSZZ "Solidarność" (Labor organization)--History.
Poland--Politics and government--1980-1989
Political parties--Poland--History--20th century
Underground literature--Poland.
Princeton subject headings:
NSZZ "Solidarność" (Labor organization)--History.
Poland--Politics and government--1980-1989.
Political parties--Poland--History.
Underground literature--Poland.