Columbia subject headings:
Great Britain--Foreign relations--1910-1936.
Great Britain--Foreign relations--Iran.
Iran--Foreign relations--Great Britain.
World War, 1914-1918--Diplomatic history.
Harvard subject headings:
Great Britain--Foreign relations--1910-1936.
Great Britain--Foreign relations--Iran.
Iran--Foreign relations--Great Britain.
World War, 1914-1918--Diplomatic history
Princeton subject headings: