- Rotary Club [3]
- Rotary Club de Luanda
- Rotary Clube [2]
- Rotary Clube de Lisboa e Figueira da Foz
- Rotary clubes de Lisboa e Figueira da Foz
- Rotas do Oriente
- Rotes Forum Nº 3
- Rotti Press [3]
- Rotti Prokaxon
- Rough Guides Ltd
- Roundhouse Publications
- Routdlege, Taylor & Francis group
- Routledge [275]
- Routledge & K. Paul [4]
- Routledge & Kegan Paul [35]
- Routledge & Kegan Paul Inc
- Routledge & Kegow Paul [2]
- Routledge and Kcgan Paul
- Routledge and Kegan Paul [8]
- Routledge and Kegan Paul Ltd
- Routledge Curzon [3]
- Routledge Falmer
- Routledge Taylor & Francis Group
- Routledge Warne
- RoutledgeCurzon [6]
- Routledgge Kegan Paul [2]
- Routlegde [6]
- Rowan & Littlefield Publishers
- Rowan Littlefield Publishers
- Rowland Ward
- Rowman & Littlefield Publishers [3]
- Rowman Littlefield
- Rowman Littlefield Publishers [5]
- Rowntree Mckenzie
- Rowohlt
- Royal Academy of Arts
- Royal Asiatic Society [3]
- Royal Book Company [4]
- Royal Books
- Royal Botanic Gardens [3]
- Royal College of Physicians
- Royal College of Physicians of Edinburgh [3]
- Royal Entomologcal Society
- Royal Geographical Society [3]
- Royal Historical Society
- Royal Institute
- Royal Institute of International Affairs [3]
- Royal Institute of Technology [2]
- Royal Ministry of Foreign Affairs [5]
- Royal Museum for Central Africa
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- Royal Norwegian Ministry of Foreign Affairs [10]
- Royal Ontario Museum [2]
- Royal Ontario Museum-ROM
- Royal Society
- Royal Society of Tropical Medicine and Hygiene [3]
- Royal tropical Institute [5]
- Royale des sciences coloniales
- Rozet
- RPA Publicações
- RPCD [3]
- RPSE
- RPSF
- RPSFC [2]
- RPSOPAC
- RPSOPT
- RPSSA
- RR Publishers
- RSPGB
- Rua da Rosa [2]
- Rua do Almada
- Rua Eugenio dos Santo
- Rua Fernandes Tomás
- Rua Luciano Cordeiro [4]
- Rubbettino Editore
- Ruben de Melo
- RUBRICART [2]
- Ruby Press
- Ruca & Co
- Rudiger Koppe verlag [93]
- Rueda [2]
- Ruedo Ibérico
- Rueff [17]
- Rui Costa Pinto Edições [3]
- Rui Gomes Pereira [4]
- Rui Manuel Loureiro
- Rui Rodrigues Costa
- Rulgeri Resci
- Rumo
- Rupa [10]
- Rupa & Co [41]
- Rupa & Co. [27]
- Rupa e Co [2]
- Rupa e Co. [3]
- Rupa in Association with Education & Technology Services Limited
- Rupa Paperback
- Rupantar [2]
- Rupert Hart-Davis [2]
- Rupert Snell
- Rusi Modi
- Russell Editores
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