Columbia subject headings:
Harvard subject headings:
Dante Alighieri, 1265-1321--Language.
Dante Alighieri, 1265-1321. Inferno. Canto 1.
Italian language--To 1300--Grammar.
Italian language--To 1500--Grammar.
Princeton subject headings:
Dante Alighieri, 1265-1321. Inferno. Canto 1
Italian language--Grammar.