Columbia subject headings:
Germany--Foreign relations--1933-1945.
Ribbentrop, Joachim von, 1893-1946.
World politics--1933-1945.
Harvard subject headings:
Germany--Foreign relations--1933-1945.
Ribbentrop, Joachim von, 1893-1946.
World politics--1933-1945
Princeton subject headings:
Germany--Foreign relations--1933-1945.
Ribbentrop, Joachim von, 1893-1946.
World politics--1933-1945.