Columbia subject headings:
Longhi, Roberto, 1890-1970--Exhibitions.
Morandi, Giorgio, 1890-1964--Exhibitions.
Harvard subject headings:
Longhi, Roberto, 1890-1970--Exhibitions.
Morandi, Giorgio, 1890-1964--Exhibitions.
Princeton subject headings:
Longhi, Roberto, 1890-1970--Exhibitions.
Morandi, Giorgio, 1890-1964--Exhibitions.