Columbia subject headings:
Harvard subject headings:
Great Britain. Public Record Office--Catalogs.
Great Britain. War Cabinet--Archives--Catalogs.
World War, 1914-1918--Great Britain--Sources--Bibliography--Catalogs.
Princeton subject headings:
Great Britain. Public Record Office--Catalogs.
Great Britain. War Cabinet--Archives--Catalogs.
World War, 1914-1918--Great Britain--Sources--Bibliography--Catalogs.