Columbia subject headings:
Authors, Italian--20th century--Correspondence.
Ungaretti, Giuseppe, 1888-1970--Correspondence.
Harvard subject headings:
Authors, Italian--20th century--Correspondence
Ungaretti, Giuseppe, 1888-1970--Correspondence.
Princeton subject headings:
Authors, Italian--20th century--Correspondence.
Raimondi, Giuseppe--Correspondence.
Ungaretti, Giuseppe, 1888-1970--Correspondence.