Columbia subject headings:
Harvard subject headings:
D'Annunzio, Gabriele, 1863-1938.
Mussolini, Benito, 1883-1945
Princeton subject headings:
D'Annunzio, Gabriele, 1863-1938--Friends and associates.
D'Annunzio, Gabriele, 1863-1938--Political and social views.
Italy--Politics and government--1914-1945.
Mussolini, Benito, 1883-1945--Friends and associates.