Publishers
- Aurora Art Publishers 3
- Aurora Publications Limited 2
- Aurum Press 7
- Australian Digest Pty. Ltd. 1
- Australian Publicity Council 1
- Australian War Memorial 2
- Autobooks Ltd. 5
- Autobus Review Publications 1
- Autocraft Books 1
- Autocritica 1
- Autodromo Nazionale Di Monza 1
- Automobile Quarterly 1
- Automobile Year 1
- Automobilia 11
- Autopress 1
- Autosport 4
- Autotechnica 2
- Aventinum 1
- Avia Books Ltd. 1
- Aviani & Aviani Editori 1
- Aviation Historical Society Of New Zealand 1
- Aviation History Press 1
- Avon - Anglia Publications & Services 1
- Avon Gloucestershire And Somerset Environmental Monitoring Committee 1
- Avots 1
- Award Publications 5
- Aztex Corporation 1