Columbia subject headings:
Borgonzoni, Aldo--Congresses.
History in art--Congresses.
Harvard subject headings:
Borgonzoni, Aldo--Congresses.
Borgonzoni, Aldo--Criticism and interpretation--Congresses.
History in art--Congresses.
Princeton subject headings:
Borgonzoni, Aldo--Congresses.
History in art--Congresses.