Referenced in:

• ed: 845 - St Petersburg, Russian National Library, Q. v. I. 15 [Isidore, Differentiae, bk. II, coll. as C]
• mss: 845 - St Petersburg, Russian National Library, Q. v. I. 15 129*-130*
• mss: 932 - Saint-Omer, Bibliothèque municipale, 279, fols. 1-2 152*