- Acrostics1
- Administration1
- Advent sermons1
- Advent--Liturgy1
- Aeneas (Legendary character)1
- Aeneis (Virgil)1
- Aesop's fables1
- Agazaria, Claudio Boncompagni di1
- Agnes, Saint, Martyr1
- Alban, Saint, -304?1
- Albums1
- Alchemy--Bibliography1
- Alcuin, 735-804. Correspondence1
- Alexander III, Pope, -11811
- Alexander, de Villa Dei. Doctrinale puerorum1
- Alfonso V, King of Aragon, 1396-14581
- Almanach perpetuum celestium motuum (Zacuto, Abraham ben Samuel)1
- Ambassadors1
- Ambrose, Saint, Bishop of Milan, -3971
- America1