Columbia subject headings:
Architecture--Italy--Bergamo.
Art--Italy--Bergamo.
Bergamo (Italy)--History.
Harvard subject headings:
Architecture--Italy--Bergamo.
Art--Italy--Bergamo.
Bergamo (Italy)--History.
Princeton subject headings:
Architecture--Italy--Bergamo.
Art--Italy--Bergamo.
Bergamo (Italy)--History.