| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Chaucer: The Canterbury Tales | Printed Access Code | 978-0-511-80332-1 | 2012 |
| Chaucer: The Canterbury Tales | Paperback | 978-0-521-54010-0 | 2004 |
| Chaucer: The Canterbury Tales | Hardcover | 978-0-521-83249-6 | 2003 |
| Chaucer: The Canterbury Tales | Paperback | 978-0-521-31159-5 | 1989 |
| Chaucer: The Canterbury Tales | Hardcover | 978-0-521-32331-4 | 1989 |
| Platonism and Poetry in the Twelfth Century: The Literary Influence of the School of Chartres | Paperback | 978-0-691-61990-3 | 2015 |
| Platonism and Poetry in the Twelfth Century: The Literary Influence of the School of Chartres | Hardcover | 978-0-691-06219-8 | 1972 |
| The Cosmographia of Bernardus Silvestris | " | 978-0-231-03673-3 | 1990 |
| The Cosmographia of Bernardus Silvestris | Paperback | 978-0-231-09625-6 | 1990 |
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