Columbia subject headings:
Chaucer, Geoffrey, -1400--Knowledge--Italy.
Chaucer, Geoffrey, -1400--Sources.
Italian literature--To 1400--History and criticism.
Italy--Civilization--1268-1559.
Italy--In literature.
Harvard subject headings:
Chaucer, Geoffrey, -1400--Knowledge--Italy.
Chaucer, Geoffrey, -1400--Sources.
Italian literature--To 1400--History and criticism
Italy--Civilization--1268-1559.
Italy--In literature.
Princeton subject headings:
Chaucer, Geoffrey, -1400--Knowledge--Italy.
Chaucer, Geoffrey, -1400--Sources.
Italian literature--To 1400--History and criticism.
Italy--Civilization--1268-1559.
Italy--In literature.