Columbia subject headings:
Art historians--Italy--Correspondence.
Bollati, Giulio--Correspondence.
Publishers.
Zeri, Federico--Correspondence.
Zeri, Federico.
Harvard subject headings:
Art critics--Italy--Correspondence.
Bollati, Giulio--Correspondence.
Zeri, Federico--Correspondence.
Princeton subject headings:
Art critics--Italy--Correspondence.
Bollati, Giulio--Correspondence.
Zeri, Federico--Correspondence.