Columbia subject headings:
Balestrieri, Lionello, 1872-1958--Correspondence.
Painters--Italy--Correspondence.
Harvard subject headings:
Balestrieri, Lionello, 1872-1958--Correspondence.
Painters--Italy--Correspondence.
Princeton subject headings:
Balestrieri, Lionello, 1872-1958--Correspondence.
Painters--Italy--Correspondence.