Columbia subject headings:
Authors, Italian--19th century--Correspondence.
Authors, Italian--20th century--Correspondence.
De Roberto, Federico, 1861-1927--Correspondence.
Di Giorgi, Ferdinando, 1869-1929--Correspondence.
Harvard subject headings:
Authors, Italian--19th century--Correspondence
Authors, Italian--20th century--Correspondence
De Roberto, Federico, 1861-1927--Correspondence.
Di Giorgi, Ferdinando, 1869-1929--Correspondence.
Princeton subject headings:
Authors, Italian--19th century--Correspondence.
Authors, Italian--20th century--Correspondence.
De Roberto, Federico, 1861-1927.
Di Giorgi, Ferdinando, 1869-1929.