Columbia subject headings:
Authors, Italian--19th century--Correspondence.
Di Giovanni, Gaetano, 1831-1912--Correspondence.
Pirandello, Luigi, 1867-1936--Correspondence.
Pirandello, Luigi, 1867-1936--Language.
Sicilian language.
Harvard subject headings:
Authors, Italian--19th century--Correspondence
Di Giovanni, Gaetano, 1831-1912--Correspondence.
Pirandello, Luigi, 1867-1936--Correspondence.
Pirandello, Luigi, 1867-1936--Language.
Sicilian language.
Princeton subject headings:
Italian language--Dialects--Phonetics.
Pirandello, Luigi, 1867-1936--Criticism and interpretation.
Sicilian language.