1. Free Library of Philadelphia, Lewis T124 Title: Theological treatise Place: undetermined Date: 1100-1200
2. Free Library of Philadelphia, Lewis T125 Title: Theological treatise Place: England Date: 1100-1200
3. Free Library of Philadelphia, Lewis T131 Title: Theological treatise Place: undetermined Date: 1000-1500
4. Free Library of Philadelphia, Lewis T140 Title: Theological treatise Place: undetermined Date: 1000-1500