Columbia subject headings:
Harvard subject headings:
Bombing, Aerial--Italy--Empoli--History.
World War, 1939-1945--Campaigns--Italy--Empoli.
World War, 1939-1945--Italy--Empoli--Aerial operations, American.
Princeton subject headings:
Bombing, Aerial--Italy--Empoli--History.
World War, 1939-1945--Campaigns--Italy--Empoli.
World War, 1939-1945--Italy--Empoli--Aerial operations, American.