Columbia subject headings:
Guariglia, Raffaele.
Italy--Foreign relations--Spain.
Italy--Foreign relations.
Spain--Foreign relations--Italy.
Harvard subject headings:
Guariglia, Raffaele.
Italy--Foreign relations--Spain.
Italy--Foreign relations.
Spain--Foreign relations--Italy.
Princeton subject headings:
Guariglia, Raffaele.
Italy--Foreign relations--Spain.
Italy--Foreign relations.
Spain--Foreign relations--Italy.