Columbia subject headings:
Germany--Foreign relations--Soviet Union.
Germany. Auswärtiges Amt. Nazi-Soviet relations, 1939-1941.
Soviet Union--Foreign relations--Germany.
World War, 1939-1945--Diplomatic history.
Harvard subject headings:
Germany--Foreign relations--Soviet Union.
Germany. Auswärtiges Amt. Nazi-Soviet relations, 1939-1941.
Soviet Union--Foreign relations--Germany.
World War, 1939-1945--Diplomatic history.
Princeton subject headings:
Germany--Foreign relations--Soviet Union.
Germany. Auswärtiges Amt. Nazi-Soviet relations, 1939-1941.
Soviet Union--Foreign relations--Germany.
World War, 1939-1945--Diplomatic history.