Columbia subject headings:
Great Britain--Foreign relations--1936-1945--Sources.
Great Britain--Foreign relations--Soviet Union--Sources.
Soviet Union--Foreign relations--Great Britain--Sources.
World War, 1939-1945--Diplomatic history--Sources.
Harvard subject headings:
Great Britain--Foreign relations--1936-1945--Sources.
Great Britain--Foreign relations--Soviet Union--Sources.
Soviet Union--Foreign relations--Great Britain--Sources.
World War, 1939-1945--Diplomatic history--Sources.
Princeton subject headings:
Great Britain--Foreign relations--1936-1945--Sources.
Great Britain--Foreign relations--Soviet Union--Sources.
Soviet Union--Foreign relations--Great Britain--Sources.
World War, 1939-1945--Diplomatic history--Sources.