Columbia subject headings:
Genscher, Hans-Dietrich, 1927-2016.
Germany--Foreign relations--20th century.
Germany--History--Unification, 1990.
Harvard subject headings:
Genscher, Hans Dietrich.
Germany--Foreign relations--20th century.
Germany--History--Unification, 1990.
Princeton subject headings:
Genscher, Hans Dietrich.
Germany--Foreign relations--20th century.
Germany--History--Unification, 1990.