Columbia subject headings:
Piłsudski, Józef, 1867-1935--Correspondence.
World War, 1914-1918--Poland.
World War, 1914-1918--Regimental histories--Austria.
Harvard subject headings:
Piłsudski, Józef, 1867-1935--Correspondence.
Statesmen--Poland--Correspondence.
Princeton subject headings: