Columbia subject headings:
Harvard subject headings:
Architecture--Italy--Lombardy--Guidebooks.
Art, Italian--Italy--Lombardy--Guidebooks.
Gonzaga family--Art collections--Italy--Lombardy--Guidebooks.
Gonzaga family--Art patronage--Italy--Lombardy--Guidebooks.
Lombardy (Italy)--Guidebooks.
Princeton subject headings:
Architecture--Italy--Lombardy--Guidebooks.
Art, Italian--Italy--Lombardy--Guidebooks.
Lombardy (Italy)--Guidebooks.