- 622-12581
- 711-15162
- 711-16991
- 747-15002
- Aachen family1
- Aachen, Hans von, 1552-16151
- Abbaye de Fontfroide1
- Abbots--Appointment, call, and election1
- Abridgments1
- Abū al-Layth al-Samarqandī, Naṣr ibn Muḥammad, d. 983? Muqaddimah fī al-ṣalāh1
- Abū al-Saʻūd Muḥammad ibn Muḥammad, 1492 or 1493-1574 or 15751
- Abū Ḥanīfah, -767 or 7681
- Abū Ḥanīfah, -767 or 768. Ḍawābiṭ al-thalāthah1
- Academic theses1
- Acciaioli, Antonio1
- Acciaioli, Francesco1
- Acciaiuoli, Roberto, 1467-15471
- Account books5
- Accounting136
- Accounting--Handbooks, manuals, etc.1