| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Chretien de Troyes: A Study of the Arthurian Romances | 978-0-521-15529-8 (0-521-15529-0) | 2006 |
| ChrÊ Tien De Troyes: A Study Of The Arthurian Romances. | 978-0-521-23361-3 (0-521-23361-5) | 1981 |
| Troubadours and Love | 978-0-521-20596-2 (0-521-20596-4) | 1975 |