Referenced in:

• ed: 217 - Durham, Cathedral Library, A. II. 4 117-18 [repr. Becker (1885) 172-3] (booklist)]
• mss: 251.5 - Edinburgh, National Library of Scotland, Advocates 18. 4. 3, fols. 1-122 67, 118
• st: 513 - London, Lambeth Palace Library, 325 31