Title
- Rhetoric text1
- Rhetorica ad Herennium1
- Risālah bar usṭurlāb1
- Risālah fī al-barāhīn ʻalá masāʼil al-jabr wa-al-muqābalah1
- Risālah fī al-hayʼah al-falakīyah1
- Risālah fī al-ḥisāb1
- Risālah fī ʻilm al-hayʼah1
- Ritual1
- Riḥlah al-Nāṣirīyah1
- Roman de Troie1
- Roman de la rose1
- Rubaiyat1
- Rule of Saint Benedict1
- Rule of the heilig Geist1
- Rules1
- Sabʻ samavāt li-sirr-i samāʼī1
- Samaritan liturgy1
- Scale of perfection1
- Schedule of tariffs1
- School miscellany1