| 3851 | XEN1.6 | Xenophontis | Expeditio Cyri | da |
| 3852 | YEH1.2 | Yehudah ha-Leṿi | The Book of Kuzari | da |
| 3853 | YEH1.1 | Yĕhūdāh hal-Lēwī | Das Buch al-Chazari des Abû-L-Ḥasan Jehuda Hallewi | da |
| 3854 | YOU2.1 | Young, Patrick | Catalogus librorum manuscriptorum bibliothecae wigorniensis | da |
| 3855 | YOU1.1 | Young, Spencer E. | Scholarly community at the early univerity of Paris : theologians, education and society, 1215-1248 | da |
| 3856 | YOU1.2 | Young, Spencer E. (ed.) | Crossing Boundaries at Medieval Universities | da |
| 3857 | ALB3.1 | Yūsuf al-Baṣīr | Das Buch der Unterscheidung | da |
| 3858 | ~D.LZ.1 | Zapartan, Liviu-Petru | Relatiile internationale | da |
| 3859 | ZEH1.1 | Zehnacker, Hubert ; Fredouille, Jean-Claude | Littérature latine | da |
| 3860 | ZEL1.1.1 | Zeller, Edoardo | La filosofia dei greci nel suo sviluppo storico (vol. I) | da |
| 3861 | ZEL1.1.2 | Zeller, Edoardo; Mondolfo, R. | La filosofia de greci nel suo sviluppo storico (vol. II) | da |
| 3862 | ZEL2.1 | Zeller, Franz | Die Apostolischen Väter | da |
| 3863 | BIBL1.16 | Zerdoun Bat-Yehouda, Monique | Les papiers filigranés des manuscrits hébreux datés jusqu'à 1450 | da |
| 3864 | ZIC1.1#2 | Zickermann, Kathrin | Across the German Sea. Early Modern Scottish Connections with the Wider Elbe-Weser Region | da |
| 3865 | ZIC1.1#1 | Zickermann, Kathrin | Across the German Sea. Early Modern Scottish Connections with the Wider Elbe-Weser Region | da |
| 3866 | ZWA1.1 | Zwaenepoel, John P. | Les quaestiones in Librum de causis atribuées à Henri de Gand | da |
| 3867 | MAR5.2 | [Marcus Aurelius] M. Antoninus Imperator | Ad se ipsum | da |
| 3868 | SAB1.1 | ʻAbd al-Ḥaqq ibn Ibrāhīm Ibn Sabʻīn | Die Sizilianischen Fragen | da |
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