1431. Free Library of Philadelphia, Lewis T148 Title: Decretals of Gregory IX Place: undetermined Date: 1000-1500
1432. Free Library of Philadelphia, Lewis T149 Title: Canon law text Place: undetermined Date: 1000-1500
1434. Free Library of Philadelphia, Lewis T151 Title: Commentary on canon law Place: undetermined Date: 1000-1500
1435. Free Library of Philadelphia, Lewis T152 Title: Commentary on canon law Place: undetermined Date: 1000-1500
1436. Free Library of Philadelphia, Lewis T153 Title: Treatise on canon law Place: undetermined Date: 1000-1500
1437. Free Library of Philadelphia, Lewis T154 Title: Treatise on logic Place: undetermined Date: 1000-1500
1438. Free Library of Philadelphia, Lewis T155 Title: De lure lurando Place: undetermined Date: 1000-1500
1439. Free Library of Philadelphia, Lewis T156 Title: School text Place: undetermined Date: 1000-1500
1440. Free Library of Philadelphia, Lewis T157 Title: Commentary on canon law Place: undetermined Date: 1000-1500