Gherardo, da Cremona, 1113 or 1114–1187: Theorica planetarum [Latin]
- Manuscripts:
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- MS. Auct. F. 3. 13 (Selected pages online) — Composite manuscript
- MS. Bodl. 464 (Selected pages online) — 1301 × 1318 (?); English, Canterbury (?)
- MS. Digby 207 — Composite manuscript
- MS. Digby 215 — 15th century, middle; Italian, North
- MS. Fairfax 27 — Composite manuscript
The above references reflect only the current coverage of the online catalogue and may not be comprehensive.