- Astronomy, Medieval1
- Astronomy--Tables1
- Athīr al-Dīn al-Abharī, al-Mufaḍḍal ibn ʻUmar, -1265. Hidāyat al-ḥikmah3
- Athīr al-Dīn al-Abharī, al-Mufaḍḍal ibn ʻUmar, -1265. Hidāyat al-ḥikmah. Qism al-Ṭabīʻī wa-al-ilāhī1
- Atlases1
- Atlases (Geographic)13
- Aubigné, Agrippa d', 1552-16301
- Auctions1
- Augustinians3
- Austria2
- Austria--Lambach (Upper Austria)1
- Authors, Classical18
- Autobiographies1
- Autographs3
- Aveiro, Gabriel de Lencastre, Duque de, 1667-17451
- Azharot3
- Bacán, Hernando de1
- Badr al-ṭāliʻ fī ḥall Jamʻ al-jawāmiʻ (Maḥallī, Jalāl al-Dīn Muḥammad ibn Aḥmad)1
- Balaibalan1
- Bandini, Francesco, 1505-15882