Columbia subject headings:
Guittone, d'Arezzo, -1294.
Italian poetry--To 1400--History and criticism.
Philosophy, Arab--Influence.
Harvard subject headings:
Guittone, d'Arezzo, -1294.
Italian poetry--To 1400--History and criticism
Italian poetry--To 1400--History and critism.
Philosophy, Arab--Influence.
Princeton subject headings:
Guittone, d'Arezzo, -1294.
Italian poetry--To 1400--History and critism.
Philosophy, Arab--Influence.