Columbia subject headings:
Harvard subject headings:
Aids to navigation--History.
Archives--Italy--Catalogs.
Italy--History--German occupation, 1943-1945--Manuscripts--Union lists.
Italy--History--German occupation, 1943-1945--Sources--Bibliography--Union lists.
Manuscripts, Italian--Union lists.
Union catalogs--Italy.
World War, 1939-1945--Underground movements--Italy--Manuscripts--Union lists.
World War, 1939-1945--Underground movements--Italy--Sources--Bibliography--Union lists.
Princeton subject headings:
Aids to navigation.
Lighthouses.