Columbia subject headings:
Harvard subject headings:
Germany--Foreign relations--1933-1945.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Documents, etc.--Sources.
Princeton subject headings:
Germany--Foreign relations--1933-1945--Sources.
World War, 1939-1945--Diplomatic history--Sources.
World War, 1939-1945--Sources.