Columbia subject headings:
Bombings--Italy--Milan--Pictorial works--Exhibitions.
Mafia--Italy--Milan--Pictorial works--Exhibitions.
Harvard subject headings:
Bombing--Italy--Milan--Pictorial works--Exhibitions.
Mafia--Italy--Milan--Pictorial works--Exhibitions.
Princeton subject headings:
Bombing--Italy--Milan--Pictorial works--Exhibitions.
Mafia--Italy--Milan--Pictorial works--Exhibitions.