| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Chaucer | Paperback | 978-0-19-287595-2 | 1984 |
| Chaucer | Hardcover | 978-0-19-287596-9 | 1984 |
| Chaucer and Langland: Historical and Textual Approaches | " | 978-1-4725-0843-0 | 2013 |
| Middle English Literature: A Critical Study of the Romances, the Religious Lyrics, and Piers Plowman | " | 978-0-367-18715-6 | 2019 |
| Piers Plowman: The Evidence for Authorship | " | 978-1-4725-0900-0 | 2013 |
Bloomsbury Academic · Oxford University Press · Routledge