Columbia subject headings:
Poland--Economic conditions--1945-
Poland--Social conditions--1980-1989.
Social conflict--Poland.
Socialism--Poland--History.
Yugoslavia--Economic conditions--1945-1992.
Harvard subject headings:
Poland--Economic conditions--1945-
Poland--Social conditions--1980-
Social conflict--Poland.
Socialism--Poland--History
Yugoslavia--Economic conditions--1945-
Princeton subject headings:
Poland--Economic conditions--1945-
Poland--Social conditions--1980-1989.
Social conflict--Poland.
Socialism--Poland--History.
Yugoslavia--Economic conditions--1945-1992.