Columbia subject headings:
Di Giacomo, Salvatore, 1860-1934--Language.
Dialect literature, Italian--History and criticism.
Italian language--Dialects--Italy--Naples.
Naples (Italy)--In literature.
Harvard subject headings:
Di Giacomo, Salvatore, 1860-1934--Language.
Dialect literature, Italian--History and criticism.
Italian language--Dialects--Italy--Naples.
Naples (Italy)--In literature.
Princeton subject headings:
Di Giacomo, Salvatore, 1860-1934.
Italian literature--Italy--Naples--History and criticism.