Referenced in:

• mss: 123 - Cambridge, Jesus College, 28 (Q. B. 11) 11 n. 35 [repr. Scragg (2003) 83 n. 35]
• st: 244 - Durham, Cathedral Library, B. III. 32 6 n. 11 [repr. Scragg (2003) 77 n. 11 (text on declinations)]
• st: 321 - London, British Library, Cotton Cleopatra A. vi, fols. 2-53 12 n. 39 [repr. Scragg (2003) 83 n. 39]