Columbia subject headings:
Harvard subject headings:
Authors, Italian--Correspondence.
Croce, Benedetto, 1866-1952. Correspondence
Neera, 1846-1918--Correspondence.
Philosophers--Italy--Correspondence
Princeton subject headings:
Authors, Italian--20th century--Biography.
Croce, Benedetto, 1866-1952.
Neera, 1846-1918.