Referenced in:

• mss: 358 - London, British Library, Cotton Otho C. i, vol. I (with London, British Library, Cotton Otho B. x, fol. 51)
• mss: 577 - Oxford, Bodleian Library, Bodley 441 (S.C. 2382)
• mss: 621 - Oxford, Bodleian Library, Eng. bib. c. 2 (S.C. 31345)