- Action and adventure fiction1
- Actions and defenses1
- Adventure stories, Spanish1
- Aeneis (Virgil)1
- Agustín, Antonio, 1517-1586. Dialogos de medallas inscriciones y otras antiguedades1
- Alba, Fernando Alvarez de Toledo, duque de, 1507-15821
- Alfonso X, King of Castile and Leon, 1221-12841
- Ana, Queen, consort of Philip II, King of Spain, 1549-15801
- Annals and chronicles1
- Anthologies1
- Anthony, of Padua, Saint, 1195-12311
- Augustine, of Hippo, Saint, 354-4301
- Augustinians1
- Austria1
- Batista de Lanuza y Tafalla, Miguel, -1659. Vida de la venerable Madre Geronima de San Estevan1
- Batista de Lanuza y Tafalla, Miguel, -1659. Vida de la venerable madre Feliciana de San Ioseph1
- Beards1
- Benefices, Ecclesiastical1
- Bible. Old Testament1
- Blaeu, Willem Janszoon, 1571-1638. Teatrum orbis terrarum1