Columbia subject headings:
Parronchi, Alessandro--Correspondence.
Poets, Italian--20th century--Correspondence.
Sereni, Vittorio--Correspondence.
Harvard subject headings:
Parronchi, Alessandro--Correspondence.
Poets, Italian--20th century--Correspondence.
Sereni, Vittorio--Correspondence.
Princeton subject headings:
Authors, Italian--20th century--Correspondence.
Parronchi, Alessandro--Correspondence.
Sereni, Vittorio--Correspondence.