- Radcliffe Pub
- Random House Books for Young Readers
- Rba Publicaciones Editores revistas
- Reaktion Books
- Redleaf Press
- Reference Service Pr
- Reflect Press
- Reichert Verlag
- Remedica Pub Ltd
- Renouf Pub Co Ltd
- Research & Education Assn
- Ringpress Books Ltd
- Rodale Pr
- Rosen Central
- Rosen Pub Group
- Routledge
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- Routledge-Cavendish
- Rowman & Littlefield Pub Inc
- Rowman & Littlefield Publishers, Inc.
- Royal College of Obstetricians and Gynaecologists
- Royal Society of Chemistry
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- Royal Society of Medicine Press Ltd
- Rr Bowker Llc
- Rutgers Univ Pr
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