Columbia subject headings:
Photography, Abstract--Exhibitions.
Photography, Artistic--Exhibitions.
Photography--Italy--History--20th century--Exhibitions.
Harvard subject headings:
Photography, Abstract--Exhibitions
Photography, Artistic--Exhibitions
Photography--Italy--History--20th century--Exhibitions.
Princeton subject headings:
Photography, Abstract--Exhibitions.
Photography, Artistic--Exhibitions.
Photography--Italy--History--20th century--Exhibitions.