- 1600-16991
- 218 B.C.-1516 A.D.1
- 218 B.C.-414 A.D.1
- 414-15991
- 449-10661
- 500-15001
- Abbaye de Fontfroide1
- Academic dissertations1
- Academic theses1
- Accounting1
- Actions and defenses1
- Aesop's fables1
- Affinity (Law)1
- Agustín, Antonio, 1517-1586. Dialogos de medallas inscriciones y otras antiguedades1
- Ajurrūmīyah (Ibn Ājurrūm, Muḥammad ibn Muḥammad)1
- Alba, Fernando Alvarez de Toledo, duque de, 1507-15821
- Alchemy1
- Alexander, the Great, 356 B.C.-323 B.C.1
- Alfonso X, King of Castile and Leon, 1221-12841
- Aljamía1