Columbia subject headings:
De Robertis, Giuseppe, 1888-1963--Congresses.
De Robertis, Giuseppe, 1888-1963--Exhibitions.
Harvard subject headings:
De Robertis, Giuseppe, 1888-1963--Congresses.
De Robertis, Giuseppe, 1888-1963--Exhibitions.
Princeton subject headings:
De Robertis, Giuseppe, 1888-1963.
Italian literature--History and criticism.