| #6441 | RC Revue. -- Praha : Tora, 2000-. -- ISSN 1213-130X |
| #6442 | RCA review. -- New York : Radio Corporation of America, 1936-1986. -- ISSN 0033-6831 |
| #6443 | RCM and E. -- Swanley : Highbury Leisure Publishing, 1986-. -- ISSN 0269-8307 |
| #6444 | RD, research development. -- Barrington : Technical Publishing Company, 1960-1978. -- ISSN 0034-5199 |
| #6445 | Reactive & functional polymers. -- Amsterdam : Elsevier Science, 1995-. -- ISSN 1381-5148 print. -- ISSN 1873-166X online |
| #6446 | Reactive polymers, Ion exchangers, sorbents. -- Amsterdam : Elsevier, 1982-1988. -- ISSN 0167-6989 print. -- ISSN 1878-3201 online |
| #6447 | Reactive polymers. -- Amsterdam : Elsevier Science, 1989-1996. -- ISSN 0923-1137 |
| #6448 | Reactor and fuel-processing technology. -- Spojené státy americké : Washington : Atomic Energy Commission, 1967, 1967-1969. -- ISSN 0097-4617 |
| #6449 | Reactor fuel processing. -- Spojené státy americké : Washington : U.S. Atomic Energy Commission, 1958-1966 |
| #6450 | Reactor Materials. -- Spojené státy americké : Washington : U.S. Atomic Energy Commission, 1958-1970 |