Columbia subject headings:
Harvard subject headings:
Philosophers--Italy--Sicily--History.
Philosophy--Italy--Sicily--History.
Philosophy--Study and teaching (Higher)--Italy--Sicily--History.
Princeton subject headings:
Philosophers--Italy--Sicily--History.
Philosophy--Historiography--History.
Philosophy--Italy--Sicily--History.
Philosophy--Study and teaching (Higher)--Italy--Sicily--History.
Sicily (Italy)--Intellectual life.