Columbia subject headings:
Europe, Eastern--History--1945---Periodicals.
Poland--History--1945-1980--Periodicals.
Poland--History--1980-1989--Periodicals.
Harvard subject headings:
Europe, Eastern--History--1945---Periodicals.
Poland--History--1945-1980--Periodicals.
Poland--History--1980-1989--Periodicals.
Princeton subject headings:
Europe, Eastern--History--1945---Periodicals.
Poland--History--1945-1980--Periodicals.
Poland--History--1980---Periodicals.