Columbia subject headings:
Harvard subject headings:
Philosophers--Italy--Sicily--Biography--Dictionaries--Italian.
Philosophy--Italy--Sicily--History--Dictionaries--Italian.
Sicily (Italy)--Biography--Dictionaries--Italian.
Theologians--Italy--Sicily--Biography--Dictionaries--Italian.
Theology--Italy--Sicily--History--Dictionaries--Italian.
Princeton subject headings:
Philosophers--Italy--Sicily--Biography--Dictionaries--Italian.
Philosophy--Italy--Sicily--History--Dictionaries--Italian.
Sicily (Italy)--Biography--Dictionaries--Italian.
Theologians--Italy--Sicily--Biography--Dictionaries--Italian.
Theology--Italy--Sicily--History--Dictionaries--Italian.