Columbia subject headings:
Harvard subject headings:
Italy, Northern--Description and travel.
Travelers--Italy, Northern--19th century.
Travelers--Italy, Northern--20th century.
Travelers--Italy, Northern--History--19th century.
Travelers--Italy, Northern--History--20th century.
Princeton subject headings:
Italy, Northern--Description and travel.
Travelers--Italy, Northern--History--19th century.
Travelers--Italy, Northern--History--20th century.