Columbia subject headings:
Italy--Foreign relations--United States.
Italy--Politics and government--1945-1976.
Partito della democrazia cristiana--History.
United States--Foreign relations--Italy.
Harvard subject headings:
Italy--Foreign relations--United States.
Italy--Politics and government--1945-1976.
Partito della democrazia cristiana--History.
United States--Foreign relations--Italy.
Princeton subject headings:
Italy--Foreign relations--United States.
Italy--Politics and government--1945-1976.
Partito della democrazia cristiana.
United States--Foreign relations--Italy.