- Rodríguez, Sebastián, 1896-19681
- Roman Civil War (Rome : 43-31 B.C.)1
- Roman law2
- Romances3
- Romances, Italian1
- Romances, Latin (Medieval and modern)3
- Romania--Transylvania2
- Romans--Religion1
- Rome (Empire)10
- Rome (Italy). Maestri delle Strade1
- Ropshitser, Naphtali Ẓevi, 1760-18271
- Rucellai, Cosimo, 1495-15191
- Rules9
- Rural conditions16
- Sacraments2
- Sacraments--Catholic Church6
- Sacred books1
- Saint-Geoire-en-Valdaine (France)1
- Saints3
- Sakkākī, Yūsuf ibn Abī Bakr, 1160- Miftāḥ al-ʻulūm1