| 其他書名 | From the Special Convocation Upon the Fiftieth Anniversary of the Pontifical Institute of Mediaeval Studies, 20 October 1979 |
| 出版 | Pontifical Institute of Mediaeval Studies, 1980 |
| 主題 | Biography & Autobiography / HistoricalHistory / Europe / GeneralHistory / Europe / MedievalHistory / Civilization |
| ISBN | 08884441179780888444110 |
| URL | http://books.google.com.hk/books?id=2OQtAAAAMAAJ&hl=&source=gbs_api |