| Rassegna Iberistica | RASSEGNA IBERISTICA | 0392-4777 |
| Rassegna Italiana di Criminologia | RASSEGNA ITALIANA DI CRIMINOLOGIA | 1121-1717 |
| Rassegna Italiana di Linguistica Applicata | | 0033-9725 |
| Rassegna Italiana di Sociologia | RASSEGNA ITALIANA DI SOCIOLOGIA | 0486-0349 |
| Rassegna Storica del Risorgimento | | 0033-9873 |
| Rastitel'nost' Rossii | RASTITEL'NOST' ROSSII | 2073-0659 |
| Ratio | | 0034-0006 |
| Ratio Juris | | 0952-1917 |
| Rational Pharmacotherapy in Cardiology | RATIONAL PHARMACOTHERAPY IN CARDIOLOGY | 1819-6446 |
| Rationality and Society | RATION SOC | 1043-4631 |
| Raumforschung und Raumordnung-Spatial Research and Planning | RAUMFORSCHUNG UND RAUMORDNUNG-SPATIAL RESEARCH AND PLANNING | 0034-0111 |
| RAUSP Management Journal | RAUSP MANAGEMENT JOURNAL | 2531-0488 |
| Rawal Medical Journal | RAWAL MEDICAL JOURNAL | 0303-5212 |
| Razavi International Journal of Medicine | RAZAVI INTERNATIONAL JOURNAL OF MEDICINE | 2345-6426 |
| Razon Historica-Revista Hispanoamericana de Historia de las Ideas | RAZON HISTORICA-REVISTA HISPANOAMERICANA DE HISTORIA DE LAS IDEAS | 1989-2659 |
| RBGN-Revista Brasileira de Gestao de Negocios | RBGN-REV BRAS GEST N | 1806-4892 |
| RBNE-Revista Brasileira de Nutricao Esportiva | RBNE-REVISTA BRASILEIRA DE NUTRICAO ESPORTIVA | 1981-9927 |
| RBONE-Revista Brasileira de Obesidade Nutricao e Emagrecimento | RBONE-REVISTA BRASILEIRA DE OBESIDADE NUTRICAO E EMAGRECIMENTO | 1981-9919 |
| RBRH-Revista Brasileira de Recursos Hidricos | RBRH-REVISTA BRASILEIRA DE RECURSOS HIDRICOS | 1414-381X |
| RCM midwives : the official journal of the Royal College of Midwives. | RCM MIDWIVES : THE OFFICIAL JOURNAL OF THE ROYAL COLLEGE OF MIDWIVES. | 1479-2915 |
| Reach | REACH | 2352-3093 |
| Reaction Chemistry & Engineering | REACTION CHEMISTRY & ENGINEERING | 2058-9883 |
| Reaction Kinetics and Catalysis Letters | REACT KINET CATAL L | 0133-1736 |
| Reaction Kinetics Mechanisms and Catalysis | REACT KINET MECH CAT | 1878-5190 |
| Reactive and Functional Polymers | REACT FUNCT POLYM | 1381-5148 |
| Reading & Writing Quarterly | | 1057-3569 |
| Reading & Writing-Journal of the Reading Association of South Africa | READING & WRITING-JOURNAL OF THE READING ASSOCIATION OF SOUTH AFRICA | 2079-8245 |
| Reading and Writing | READ WRIT | 0922-4777 |
| Reading in a Foreign Language | READING IN A FOREIGN LANGUAGE | 1539-0578 |
| Reading Medieval Studies | | 0950-3129 |
| Reading Psychology | READING PSYCHOLOGY | 0270-2711 |
| Reading Research and Instruction | | 0886-0246 |
| Reading Research Quarterly | READ RES QUART | 0034-0553 |
| Reading Teacher | | |
| Reading Teacher | READ TEACH | 0034-0561 |
| Real Analysis Exchange | | 0147-1937 |
| Real Estate Economics | REAL ESTATE ECON | 1080-8620 |
| Real Estate Management and Valuation | REAL ESTATE MANAGEMENT AND VALUATION | 2300-5289 |
| Real Estate Taxation | REAL ESTATE TAXATION | 0093-5107 |
| Real-time Imaging | | |
| Real-time Imaging | REAL-TIME IMAGING | 1077-2014 |
| Real-Time Systems | REAL-TIME SYST | 0922-6443 |
| Reales Sitios | | 0486-0993 |
| Realitas-Revista de Ciencias Sociales Humanas y Artes | REALITAS-REVISTA DE CIENCIAS SOCIALES HUMANAS Y ARTES | 2346-0504 |
| Reality of Politics. Estimates - Comments - Forecast | | 2082-3959 |
| Reanimation | REANIMATION | 1624-0693 |
| REC: CardioClinics | REC: CARDIOCLINICS | 2605-1532 |
| ReCALL | RECALL | 0958-3440 |
| Recent Advances in DNA and Gene Sequences | RECENT ADVANCES IN DNA AND GENE SEQUENCES | 2352-0922 |
| Recent Advances in Electrical & Electronic Engineering | RECENT ADVANCES IN ELECTRICAL & ELECTRONIC ENGINEERING | 2352-0965 |
