Bibliography : John Chrysostom
| Willene B. Clark; Meradith T. McMunn | Beasts and Birds of the Middle Ages: The Bestiary and its Legacy |
| Samuel A. Ives; Hellmut Lehmann-Haupt | An English 13th Century Bestiary: A New Discovery in the Technique of Medieval Illumination |
| Florence McCulloch | Medieval Latin and French Bestiaries |
| Francesco Sbordone | La Tradizione manoscritta del Physiologus Latino |
