| 2531 | DEM2.3.2.1 | Demostenes | Orationes II, pars I, (XX-XXIII) | da |
| 2532 | DEM2.1.3 | Demosthenis | Orationes III (XLI-LXI) | da |
| 2533 | CIC1.16 | M. Tullius Cicero | Orationes post reditum | da |
| 2534 | HYP1.1 | Hyperidus (ed. f. Blass) | Orationes quattuor | da |
| 2535 | CIC1.6.6 | Marcus Tullius Cicero | Orationes vol. VI | da |
| 2536 | ISO1.1.1 | Isocrates | Orationes Vol.1 (ed. Blass) | da |
| 2537 | ISO1.1.2 | Isocrates | Orationes Vol.2 (ed. Blass) | da |
| 2538 | CIC1.6.2 | Marcus Tullius Cicero | Orationes, vol II | da |
| 2539 | CIC1.6.3 | Marcus Tullius Cicero | Orationes, vol III | da |
| 2540 | CIC1.6.1 | Marcus Tullius Cicero | Orationes, vol. I | da |
| 2541 | THE3.2.3 | Themistius | Orationes, vol. III | da |
| 2542 | CIC1.6.4 | Marcus Tullius Cicero | Orationes, vol. IV | da |
| 2543 | CIC1.13 | M. Tullius Cicero | Orationes. De lege agraria | da |
| 2544 | ASC1.1 | Quintus Asconius Pedianus | Orationum Ciceronis quinque ennaratio | da |
| 2545 | CIC1.10 | M. Tullius Cicero | Orator | da |
| 2546 | COM2.1 | Jan Amos Comenius | Orbis Sensualium Pictus | da |
| 2547 | WOD1.2.1 | Adam Wodeham; Severin Valentinov Kitanov, Christopher Schabel (eds.) | Ordinatio oxoniensis in primum librum Sententiarum. Distinctio 1, quaestiones 8-9 | da |
| 2548 | SCH1.1 | Schachten, Winfried H. J. | Ordo salutis : das Gesetz als Weise der Heilsvermittlung ; zur Kritik des hl. Thomas von Aquin an Joachim von Fiore | da |
| 2549 | SOR2.1 | Sorel, Reynal | Orfeu şi orfismul | da |
| 2550 | ARI1.75.1 | Aristotel | Organon I | da |
| 2551 | ARI1.75.2 | Aristotel | Organon II | da |
| 2552 | ARI1.75.3 | Aristotel | Organon III | da |
| 2553 | ARI1.75.4 | Aristotel | Organon IV | da |
| 2554 | MAI3.1 | Maier, Friedrich; Zeller, Alfred | Organon: Grammatik II. Sazlehre | da |
| 2555 | Orie46 | *** | ORIENS. Journal of Philosophy, Theology and Science in the Islamic Societies | da |