Columbia subject headings:
Harvard subject headings:
Bologna (Italy)--History
Bologna (Italy)--History--Bombardment, 1943-1945--Pictorial works.
World War, 1939-1945--Destruction and pillage--Italy--Bologna--Pictorial works.
World War, 1939-1945--Italy--Bologna--Pictorial works.
Princeton subject headings:
Bologna (Italy)--Pictorial works.
Reconstruction (1939-1951)--Italy--Bologna--Pictorial works.
World War, 1939-1945--Destruction and pillage--Italy--Bologna--Pictorial works.