| #1521 | Radiometer polarographics. -- Dánsko : Copenhagen : Radiometer, 1950-1960. -- ISSN 0481-6714 |
| #1522 | Radon bulletin : informace, poznatky, rady, zkušenosti. -- Praha : Státní ústav radiační ochrany, 1999-. -- ISSN 2336-7733 |
| #1523 | Rapid communications in mass spectrometry. -- London : Heyden, 1987-. -- ISSN 0951-4198 print. -- ISSN 1097-0231 online |
| #1524 | RAPRA abstracts. -- Oxford : Pergamon Press, 1968-. -- ISSN 0033-6750 |
| #1525 | Rapra review reports / Rapra Technology. -- Velká Británie : Oxford : Pergamon, 1987-2005. -- ISSN 0889-3144 |
| #1526 | Rarefied gas dynamics. -- Spojené státy americké : New York : Academic Press, 1958-. -- ISSN 0539-0613 |
| #1527 | Reaction kinetics and catalysis letters. -- Budapest : Akadémiai Kiadó, 1974-2009. -- ISSN 0133-1736 print. -- ISSN 1588-2837 online |
| #1528 | Reaction kinetics, mechanisms and catalysis. -- Dordrecht : Springer Netherlands, 2010-. -- ISSN 1878-5190 print. -- ISSN 1878-5204 online |
| #1529 | Reactive & functional polymers. -- Amsterdam : Elsevier Science, 1995-. -- ISSN 1381-5148 print. -- ISSN 1873-166X online |
| #1530 | Reactive polymers, Ion exchangers, sorbents. -- Amsterdam : Elsevier, 1982-1988. -- ISSN 0167-6989 print. -- ISSN 1878-3201 online |