Columbia subject headings:
Germany (East)--Politics and government--1989-1990.
Germany--History--Unification, 1990.
Germany--Relations--Poland.
Poland--Politics and government--1989-
Poland--Relations--Germany.
Harvard subject headings:
Germany (East)--Politics and government--1989-1990.
Germany--History--Unification, 1990.
Germany--Relations--Poland.
Poland--Politics and government--1989-
Poland--Relations--Germany
Princeton subject headings:
Germany (East)--Politics and government--1989-1990.
Germany--Foreign relations--Poland.
Germany--Politics and government--1990-
Poland--Foreign relations--Germany.
Poland--Politics and government--1989-
Post-communism--Germany (East).
Post-communism--Poland.