- ????? (Japan) (1)
- ????????, ?. ? (1)
- A Leide (1)
- A. F Lucini (Antonio Francesco), 1610- (1)
- A. Hoen & Co. (1)
- A.L. Bancroft & Company (1)
- A.L. Bancroft & Company. (1)
- A.S. Barnes & Co. (1)
- Aa, Pieter van der, 1659-1733 (63)
- Abbot, E. T. (1)
- Abbott, E. T.,1847-1938. (1)
- Abert, J. W. (James William), 1820-1897 (1)
- Acadeámie royale des sciences (France) (1)
- Acarete, du Biscay, active 17th century (1)
- Ackermann & Co. (1)
- Adam and Charles Black (Firm) (2)
- Adam and Charles Black (Firm), (3)
- Adams, Sebastian C (2)
- Adams, capt. Henry (1)
- Adept Map Co. (1)