Columbia subject headings:
Harvard subject headings:
Great Britain. Army. Post Office Rifles Regiment--History.
World War, 1914-1918--Campaigns--Western Front
World War, 1914-1918--Regimental histories--Great Britain
Princeton subject headings:
Great Britain. Army. Post Office Rifles Regiment--History.
World War, 1914-1918--Campaigns--Western Front.
World War, 1914-1918--Regimental histories--Great Britain.