Columbia subject headings:
Harvard subject headings:
Cities and towns--Italy--Emilia--Pictorial works--Exhibitions.
Cities and towns--Italy--Pictorial works--Exhibitions.
Emilia-Romagna (Italy)--Pictorial works--Exhibitions.
Fondazione Cassa di risparmio in Bologna--Photograph collections--Exhibitions.
Photograph collections--Italy--Bologna--Exhbitions.
Photography--Italy--History--19th century--Exhibitions.
Poppi, Pietro--Exhibitions.
Princeton subject headings:
Bologna (Italy)--Pictorial works--Exhibitions.
Cities and towns--Italy--Emilia--Pictorial works--Exhibitions.
Cities and towns--Italy--Pictorial works--Exhibitions.
Fondazione Cassa di risparmio in Bologna. Collezione d'arte e di storia--Exhibitions.
Photograph collections--Italy--Bologna--Exhibitions.
Photography--Italy--History--19th century--Exhibitions.
Poppi, Pietro, 1833-1914--Exhibitions.