Title
- Registrum alphabeticum1
- Registrum ordinis Cysterciensis1
- Regle et maniere de vivre1
- Regulae1
- Regulations1
- Religiosorum status triplex1
- Republic1
- Rerum suo tempore gestarum commentarius1
- Revelations1
- Roman ceremonials1
- Romuleon1
- Rosarium1
- Rosarium theologiae1
- Rozier des guerres1
- Rubricae1
- Rule of Saint Benedict1
- Rule of living1
- Sacramentary1
- Saint Anne and the Virgin Mary1
- Saint Patrick's Purgatory1