Columbia subject headings:
Prezzolini, Giuseppe, 1882-1982.
Ungaretti, Giuseppe, 1888-1970--Correspondence.
Harvard subject headings:
Authors, Italian--20th century--Correspondence
Prezzolini, Giuseppe, 1882-1982.
Ungaretti, Giuseppe, 1888-1970--Correspondence.
Princeton subject headings:
Prezzolini, Giuseppe, 1882-1982.
Ungaretti, Giuseppe, 1888-1970--Correspondence.