Columbia subject headings:
Panzieri, Raniero, 1921-1964.
Partito socialista italiano--History.
Socialist parties--Italy--Sicily--History--20th century.
Harvard subject headings:
Panzieri, Raniero, 1921-1964
Partito socialista italiano--History.
Socialist parties--Italy--Sicily--History--20th century.
Princeton subject headings:
Panzieri, Raniero, 1921-1964.
Partito socialista italiano.
Socialism--Italy--Sicily--History.