| #6021 | Roads and construction. -- Spojené státy americké - United States : Toronto : Monetary Times Printing, 1950. -- ISSN 0316-2168 |
| #6022 | Roads and road construction. -- United Kingdom -Spojené království Velké Británie : London : Carriers Publishing, 1923-1972. -- ISSN 0035-7332 |
| #6023 | Roads and streets. -- Spojené státy americké - United States : Chicago : Gillette Publishing Company, Chicago : R.H. Donnelly, 1926-. -- ISSN 0035-7340 |
| #6024 | Roadway. -- United Kingdom -Spojené království Velké Británie : London : Road Haulage Association, 1935-. -- ISSN 0035-7316 |
| #6025 | Robotic journal : svět robotiky a automatizace v průmyslu. -- Praha : Tech Media Publishing, 2016-. -- ISSN 2533-4425 |
| #6026 | Robotica : international journal of information, education and research in robotics and artificial intelligence. -- Cambridge : Cambridge University Press, 1983-. -- ISSN 0263-5747 |
| #6027 | Robotics and computer-integrated manufacturing. -- Oxford : Pergamon Press, 1984-. -- ISSN 0736-5845 print. -- ISSN 1879-2537 online |
| #6028 | Rock mechanics. -- Wien : Springer, 1969-1982. -- ISSN 0035-7448 |
| #6029 | Rock products. -- Overland Park : Intertec Pub., 1964-. -- ISSN 0747-3605 |
| #6030 | Rock products. -- Spojené státy americké - United States : Chicago : Maclean-Hunter, 1917-1963. -- ISSN 0035-7464 |