1. Buffalo & Erie County Public Library, RBR Mss. C33H96 1400z DS ID: DS26292 Title: Hymnal Author: Catholic Church Place: Germany Date: 15th cent.
2. Free Library of Philadelphia, Lewis E M 25:7A DS ID: DS5083 Title: Hymnal Place: Florence and Italy Date: 1325-1350
3. Free Library of Philadelphia, Lewis E M 25:8 DS ID: DS5084 Title: Hymnal Place: Florence and Italy Date: 1325-1350