Columbia subject headings:
Harvard subject headings:
Europe--History--20th century.
Europe--Relations--Germany.
German reunification question (1949-1990)
Germany--Foreign public opinion, European.
Germany--History--Unification, 1990.
Germany--Relations--Europe.
Princeton subject headings:
Europe--Foreign relations--Germany.
Europe--Politics and government--1989-
Germany (East)--Politics and government--1989-1990.
Germany--Foreign relations--Europe.
Germany--History--Unification, 1990.
Germany--Politics and government--1990-