- Historical and Textual Approaches to Chaucer and Langland
- Chaucer (Past Masters)
- Chaucer and Langland: Historical and Textual Approaches
- Middle English Literature: A Critical Study of the Romances, the Religious Lyrics, Piers Plowman
- Piers Plowman Glossary: Will's Visions of Piers Plowman, Do-Well, Do-Better and Do-Best (Piers Plowman Glossary)