Columbia subject headings:
Germany--Foreign relations--1918-1933.
Germany--Foreign relations--1933-1945.
Germany--Foreign relations--1945-
World politics--1945-1989.
Harvard subject headings:
Germany--Foreign relations--1918-1933.
Germany--Foreign relations--1933-1945.
Germany--Foreign relations--1945-
World politics--1945-
World politics--1945-1989
Princeton subject headings:
Germany--Foreign relations--1918-1933.
Germany--Foreign relations--1933-1945.
Germany--Foreign relations--1945-
World politics--1945-1989.