Columbia subject headings:
Dante Alighieri, 1265-1321. Divina commedia.
Signorelli, Luca, 1441?-1523.
Harvard subject headings:
Dante Alighieri, 1265-1321. Divina commedia.
Signorelli, Luca, 1441?-1523.
Princeton subject headings:
Dante Alighieri, 1265-1321--Illustrations.
Signorelli, Luca, 1441?-1523.