Columbia subject headings:
Sironi, Mario, 1885-1961--Criticism and interpretation.
Sironi, Mario, 1885-1961--Exhibitions.
Harvard subject headings:
Sironi, Mario, 1885-1961--Criticism and interpretation.
Sironi, Mario, 1885-1961--Exhibitions.
Princeton subject headings:
Sironi, Mario, 1885-1961--Criticism and interpretation.
Sironi, Mario, 1885-1961--Exhibitions.