| 其他書名 | An Inaugural Lecture Delivered Before the University of Oxford on 7 November 1984 |
| 出版 | Clarendon Press, 1986 |
| 主題 | History / Europe / GeneralHistory / Europe / Medieval |
| ISBN | 01995154689780199515462 |
| URL | http://books.google.com.hk/books?id=njxnAAAAMAAJ&hl=&source=gbs_api |