| references | secondary books |
|---|---|
| Isidore of Seville, Liber De Numeris (Incertus) (Appendix Xxi), 9.51 | Romana Berno, Roman Luxuria: A Literary and Cultural History (2023), 235 |
| Isidore of Seville, Liber De Numeris (Incertus) (Appendix Xxi), 23 | Jouanna, Greek Medicine from Hippocrates to Galen (2012), 249 |