- Assn of Amer Medical Colleges
- Atheneum
- Atheneum Books
- Atheneum Books for Young Readers
- Athletic Pub Co
- Atlantida Editorial S.A.
- Atlantis Kinderbücher
- Atom
- Atria Books
- Audio Book Contractors
- Audio Craft Pr Inc
- Audio-Forum
- Audiobooks
- Audiotext
- Augsburg Fortress Pub
- August House Pub Inc
- August House Publishers
- August von Goethe Literaturverlag
- Aunt Strawberry Books
- Aurora Metro Press
- Aurora Verlag
- Austrian Academy of Sciences
- Authentic Media
- Authentic USA
- Authorhouse
- Autumn Publishing Ltd
- Auzou
- Avalon Travel Publishing
- Avisson Pr Inc
- Avon Books
- Avon Tempest
- Axiom House
- Axiom Pr
- Axle Pub Co Inc
Copii și adolescenți
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