Columbia subject headings:
Drawing--Italy--Lombardy.
Engraving--Italy--Lombardy.
Lombardy (Italy)--Description and travel.
Harvard subject headings:
Drawing--Italy--Lombardy--Catalogs.
Engraving--Italy--Lombardy--Catalogs.
Lombardy (Italy)--Pictorial works--Catalogs.
Princeton subject headings:
Drawing--Italy--Lombardy--Catalogs.
Engraving--Italy--Lombardy--Catalogs.
Lombardy (Italy)--Pictorial works--Catalogs.