| #6541 | Research & development. -- Spojené státy americké - United States : New York : Cahners,, 1980- |
| #6542 | Research EU Results Magazine : Results magazine. -- Luxembourg : Publications Office, 2011-. -- ISSN 1831-9947 |
| #6543 | Research for industry. -- Spojené státy americké -United States : Menlo Park, Calif. : Stanford Research Institute, 1959-1964 |
| #6544 | Research in Agricultural Engineering. -- Prague : Czech Academy of Agricultural Sciences, 2000-. -- ISSN 1212-9151 |
| #6545 | Research information. -- Cambridge : Europa Science, 2005-. -- ISSN 1744-8026 |
| #6546 | Research journal of the Water Pollution Control Federation. -- Spojené státy americké - United States : Alexandria : Water Pollution Control Federation, 1989-1991. -- ISSN 1047-7624 |
| #6547 | Research reports from the Netherlands : Newsletter for the media. -- Hague : Netherlands Organisation for Scientific Research, 1991-. -- ISSN 0927-880X |
| #6548 | Research techniques and instrumentation. -- United Kingdom -Spojené království Velké Británie : London : Ashbourne Publ.,, 1965-1968. -- ISSN 0486-5197 |
| #6549 | Resin News. -- Richmond : O’Connor, 1961-. -- ISSN 0034-5563 |
| #6550 | Resins, rubbers, plastics. Ser. 3. -- Spojené státy americké - United States : New York : Interscience Publishers, 1961-1966 |