Dunbar
| Author(s) | Title | Reference | |
|---|---|---|---|
| Ruth Pryor | John Lydgate. (Medieval Authors series), by Derek Pearsall, J. Norton-Smith, Roger Fowler | 40/2, p. 206 | |
| Helen Cooper | English Verse 1300-1500. (Longman Annotated Anthologies of English Verse), by John Burrow | 47/2, p. 372 |