Columbia subject headings:
Poland--History--1980-1989.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Soviet Union.
Harvard subject headings:
Poland--History--1980-
Poland--Politics and government--1980-1989
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Soviet Union.
Princeton subject headings:
Poland--History--1980-.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Soviet Union.