Referenced in:

• st: 389 - London, British Library, Cotton Vespasian D. vi, fols. 2-77 105, 119, 124
• mss: 449 - London, British Library, Royal 1. E. vii + viii
• mss: 934 - San Marino (California), Henry E. Huntington Library, HM 62 103 n. 14