Columbia subject headings:
Art, Modern--Exhibitions.
Art--Italy--Milan--Exhibitions.
Biblioteca ambrosiana--Exhibitions.
Manuscripts--Italy--Milan--Exhibitions.
Harvard subject headings:
Art, Modern--Exhibitions
Art--Italy--Milan--Exhibitions.
Biblioteca ambrosiana--Exhibitions.
Manuscripts--Italy--Milan--Exhibitions.
Princeton subject headings:
Art, Modern--Exhibitions.
Art--Italy--Milan--Exhibitions.
Biblioteca ambrosiana--Exhibitions.
Manuscripts--Italy--Milan--Exhibitions.