Columbia subject headings:
Authors, Italian--19th century--Correspondence.
Authors, Italian--20th century--Correspondence.
Di Giacomo, Salvatore, 1860-1934--Correspondence.
Harvard subject headings:
Authors, Italian--19th century--Correspondence
Authors, Italian--20th century--Correspondence
Di Giacomo, Salvatore, 1860-1934--Correspondence.
Princeton subject headings:
Authors, Italian--19th century--Correspondence.
Authors, Italian--20th century--Correspondence.
Di Giacomo, Salvatore, 1860-1934--Correspondence.
Di Giacomo, Salvatore, 1860-1934--Friends and associates.