Columbia subject headings:
German reunification question (1949-1990)
Germany (East)--Politics and government.
Germany--History--1945-1990.
Germany--Politics and government--1945-1990.
Harvard subject headings:
German reunification question (1949-1990)
Germany--Politics and government--1945-1990.
Germany--Politics and government--1990-
Princeton subject headings:
German reunification question (1949-1990)
Germany (East)--Politics and government.
Germany--History--1945-1990.
Germany--Politics and government--1945-1990.