1. Free Library of Philadelphia, Lewis E M 72:13-14 DS ID: DS5681 Title: Antiphonary Place: Perugia and Italy Date: 1300-1350
2. Free Library of Philadelphia, Lewis E M 72:17-21 DS ID: DS5683 Title: Antiphonary Place: Perugia and Italy Date: 1450-1499
3. Free Library of Philadelphia, Lewis E M 72:22 DS ID: DS5685 Title: Antiphonary Place: Perugia and Italy Date: 1400-1499