Columbia subject headings:
Dante Alighieri, 1265-1321. De vulgari eloquentia.
Language and languages--Origin.
Harvard subject headings:
Dante Alighieri, 1265-1321. De vulgari eloquentia.
Language and languages--Origin
Princeton subject headings:
Dante Alighieri, 1265-1321. De vulgari eloquentia.
Language and languages--Origin.