Columbia subject headings:
Dante Alighieri, 1265-1321--Characters--Virgil.
Dante Alighieri, 1265-1321. Divina commedia.
Virgil--In literature.
Harvard subject headings:
Dante Alighieri, 1265-1321--Characters--Virgil.
Dante Alighieri, 1265-1321. Divina commedia.
Virgil--In literature.
Princeton subject headings:
Dante Alighieri, 1265-1321--Sources.
Virgil--Influence.