| Person | Titel | Jahr | Signatur | |
|---|---|---|---|---|
| Williams, David H. | The Welsh Cistercians New rev. ed. | 1984 | ||
| Williams, David H. | The Welsh Cistercians | 2001 |
HB 810 660 |
|
| Williams, David H. | The Welsh Cistercians, Volume 2 | 1984 |
08-QA-0686 |
|