| Primary Source | Dante's Work | Book | Chapter / Poem | Paragraph / Verse |
|---|---|---|---|---|
| Gemma purpurea | De vulgari eloquentia | 1 | 14 | 3 |
| Parlamenti in volgare | De vulgari eloquentia | 1 | 14 | 3 |
| Summa dictaminis | De vulgari eloquentia | 1 | 18 | 1 |
| Summa dictaminis | De vulgari eloquentia | 2 | 4 | 4 |
| Summa dictaminis | De vulgari eloquentia | 2 | 6 | 4 |