Columbia subject headings:
Japan--Foreign relations--Soviet Union--Sources.
Japan. Treaties, etc. 1941 April 13.
Soviet Union--Foreign relations--Japan--Sources.
World War, 1939-1945--Diplomatic history--Sources.
Harvard subject headings:
Japan--Foreign relations--Soviet Union--Sources.
Japan--Foreign relations--Treaties.
Japan. Treaties, etc. 1941 April 13.
Soviet Union--Foreign relations--Japan--Sources.
Soviet Union--Foreign relations--Treaties.
World War, 1939-1945--Diplomatic history--Sources.
Princeton subject headings:
Japan--Foreign relations--Soviet Union--Sources.
Japan. Treaties, etc. 1941 April 13
Soviet Union--Foreign relations--Japan--Sources.
World War, 1939-1945--Diplomatic history--Sources.