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