Columbia subject headings:
Di Giacomo, Salvatore, 1860-1934--Criticism and interpretation.
Naples (Italy)--In literature.
Harvard subject headings:
Di Giacomo, Salvatore, 1860-1934--Criticism and interpretation.
Naples (Italy)--In literature.
Princeton subject headings:
Di Giacomo, Salvatore, 1860-1934--Friends and associates.
Di Giacomo, Salvatore, 1860-1934.
Naples (Italy)--Intellectual life--20th century.