Bibliography : Asp
| Claudius Aelianus; A. F. Scholfield, trans. | On the Nature of Animals |
| Janetta Rebold Benton | Medieval Menagerie: Animals in the Art of the Middle Ages |
| Anne Clark | Beasts and Bawdy |
| Victor Henry Debidour | Le Bestiaire Sculpté du Moyen Age en France |
| Leo J. Henkin | The Carbuncle in the Adder's Head |
| Willy Ley | Dawn of Zoology |
| Sandra Mangoubi | La surdité volontaire de l'aspic. Un cas exemplaire du bestiaire augustinien |
| Florence McCulloch | Medieval Latin and French Bestiaries |
| Florence McCulloch | The Metamorphosis of the Asp in Latin and French Bestiaries |
| Ann Payne | Medieval Beasts |
| J. L. Schrader, ed. | A Medieval Bestiary |
| Ute Schwab; Gabriel Bianciotto & Michel Salvat, ed. | Die Bedeutungen der Aspis und die Verwandlungen des Marsus |
| Edward Topsell; Malcolm South, ed. | Topsell's Histories of Beasts |
