Columbia subject headings:
Harvard subject headings:
Civilization, Medieval, in literature.
Florence (Italy)--Intellectual life
Italian poetry--Italy--Florence--History and criticism.
Italian poetry--Italy--Siena--History and criticism.
Italian poetry--To 1400--History and criticism
Siena (Italy)--Intellectual life.
Princeton subject headings:
Florence (Italy)--Civilization.
Italian poetry--15th century--History and criticism.
Italian poetry--Italy--Florence--History and criticism.
Italian poetry--Italy--Siena--History and criticism.
Italian poetry--To 1400--History and criticism.
Siena (Italy)--Civilization.