Columbia subject headings:
Harvard subject headings:
Germany--Foreign relations--1933-1945.
Germany--Foreign relations--Italy.
Italy--Foreign relations--1922-1945.
Italy--Foreign relations--Germany.
Mussolini, Benito, 1883-1945
Princeton subject headings:
Germany--Foreign relations--1918-1933.
Germany--Foreign relations--Italy.
Italy--Foreign relations--1922-1945.
Italy--Foreign relations--Germany.