Columbia subject headings:
German reunification question (1949-1990)
Germany (West)--Foreign relations.
Harvard subject headings:
German reunification question (1949-1990)
Germany (West)--Foreign relations.
Princeton subject headings:
Europe--Politics and government--1945-
Germany (East)--Relations--Germany (West)
Germany (West)--Relations--Germany (East)
World politics--1945-1989.