- 414-7111
- 58 B.C.-1789 A.D.1
- A (The letter)1
- Acciaiuoli, Roberto, 1467-15471
- Administration1
- Africa1
- Africa--Atlantic Coast1
- Agriculture--Accounting1
- Agustín, Antonio, 1517-1586. Dialogos de medallas inscriciones y otras antiguedades1
- Alba, Fernando Alvarez de Toledo, duque de, 1507-15821
- Alfonso V, King of Aragon, 1396-14581
- Algebra1
- Almanach perpetuum celestium motuum (Zacuto, Abraham ben Samuel)1
- Angels1
- Antiphonaries1
- Antiquities1
- Apocryphal and legendary literature1
- Apologetics1
- Aqueducts1
- Architecture--Orders1