Columbia subject headings:
Authors, Italian--20th century--Correspondence.
D'Annunzio, Gabriele, 1863-1938--Correspondence.
De Felici, Letizia, 1903-1992--Correspondence.
Harvard subject headings:
Authors, Italian--20th century--Correspondence
D'Annunzio, Gabriele, 1863-1938--Correspondence.
De Felici, Letizia, 1903-1992--Correspondence.
Princeton subject headings:
Authors, Italian--20th century--Correspondence.
D'Annunzio, Gabriele, 1863-1938--Correspondence.
De Felici, Letizia, 1903-1992, Correspondence.