Columbia subject headings:
Patti, Ercole, 1903---Criticism and interpretation--Congresses.
Harvard subject headings:
Patti, Ercole, 1903---Criticism and interpretation--Congresses.
Princeton subject headings:
Italian literature--20th century--History and criticism--Congresses.
Italian literature--Italy--Sicily--Congresses.
Patti, Ercole, 1903---Congresses.