| 1851 | JUN1.1 | Jung-Palczewska, Elzbieta | Prima verba. Krakowskie mowy uniwersyteckie | da |
| 1852 | KAG1.1 | Kagan, Donald (ed.) | Studies in the Greek Historians | da |
| 1853 | KAL1.1 | Kaluza, Zenon | Lektury Filozoficzne Wincentego Kadlubka. Zbior Studiow | da |
| 1854 | KAL1.2 | Kaluza, Zenon | Etudes doctrinales sur le XIVe siecle. Theologie, logique, philosophie | nu |
| 1855 | KAL1.3 | Kaluza, Zenon | Les querelles doctrinales a Paris. Nominalistes et realistes aux confins du XIVe et du XVe siecle | da |
| 1856 | KAL1.4 | Kaluza, Zenon | Nicolas d'Autrecourt, ami de la verite | nu |
| 1857 | KAL2.1 | Kalhous, David | Anatomy of a duchy. The political and ecclesiastical structures of early Přemyslid Bohemia | da |
| 1858 | KAM1.1 | Ibn-Kammūna, Saʿd Ibn-Manṣūr | Examen de la critique des trois religions monothéistes | da |
| 1859 | KAN1.1 | Kant, Immanuel | Prolegomene la orice metafizica viitoare care se va putea infatisa drept stiinta | da |
| 1860 | KAN1.2 | Kant, Immanuel | Critica raţiunii practice | da |
| 1861 | KAN2.1 | Kandler, K.-H.; Mojsisch, B.; Stammkotter, F.-B. | Dietrich von Freiberg. Neue Perspektiven seiner Philosophie, Theologie und Naturwissenschaft | da |
| 1862 | KAP1.1 | Kaposi, Krisztina (ed.) | Enyedi 460. Tanulmanykotet Enyedi Gyorgy szuletesenek 460 evfordulojara rendezett kamarakonferencia eloadasaibol | da |
| 1863 | KAS1.1 | Kassel, Rudolf | Der text der aristotelischen phetorik | da |
| 1864 | KEC1.1 | Bartholomaeus Keckermann | Praecognita philosophica | da |
| 1865 | KEN1.1 | Kenny, Anthony | Aquinas on mind | da |
| 1866 | KEN2.1 | Kennedy, Edward S. | Astronomy and astrology in the Medieval Islamic world | da |
| 1867 | KES1.1 | Kesper-Biermann, Sylvia | Kriminalität in Mittelalter und Früher Neuzeit : soziale, rechtliche, philosophische und literarische Aspekte | da |
| 1868 | KEU1.1 | Keuls, Eva C. | Plato And Greek Painting | da |
| 1869 | KIE1.1.3 | Kieckers, E. | Historische griechische Grammatik. Syntax III | da |
| 1870 | KIE1.1.4 | Kieckers, E. | Historische griechische Grammatik. Syntax IV | da |
| 1871 | KIL1.1.2 | Robert Kilwardby | Quaestiones in librum secundum Sententiarum | da |
| 1872 | KIL1.1.5 | Robert Kilwardby | Quaestiones in quattuor libros sententiarum-appendix | da |
| 1873 | KIL1.2 | Kilwardby, Robert; Judy, Albert G. (ed.) | De ortu scientiarum | da |
| 1874 | KIL1.3 | Kilwardby, Robert; Lewry, P. Osmund (ed.) | On Time and Imagination. De Tempore. De Spiritu Fantastico | da |
| 1875 | KIR1.1 | Kirk, G.S.; Raven, J.E. | The Presocratic Philosophers | da |
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