| #6621 | Research applied in chemistry. -- United Kingdom -Spojené království Velké Británie : London : Butterworths Scientific Publishers, 1958-1962 |
| #6622 | Research & development. -- Newton : Cahners Publ., 1984-. -- ISSN 0746-9179 |
| #6623 | Research & development. -- Spojené státy americké : New York : Cahners, 1948- |
| #6624 | Research & development. -- Spojené státy americké - United States : New York : Cahners,, 1980- |
| #6625 | Research EU Results Magazine : Results magazine. -- Luxembourg : Publications Office, 2011-. -- ISSN 1831-9947 |
| #6626 | Research for industry. -- Spojené státy americké -United States : Menlo Park, Calif. : Stanford Research Institute, 1959-1964 |
| #6627 | Research in Agricultural Engineering. -- Prague : Czech Academy of Agricultural Sciences, 2000-. -- ISSN 1212-9151 |
| #6628 | Research information. -- Cambridge : Europa Science, 2005-. -- ISSN 1744-8026 |
| #6629 | Research journal of the Water Pollution Control Federation. -- Spojené státy americké - United States : Alexandria : Water Pollution Control Federation, 1989-1991. -- ISSN 1047-7624 |
| #6630 | Research reports from the Netherlands : Newsletter for the media. -- Hague : Netherlands Organisation for Scientific Research, 1991-. -- ISSN 0927-880X |