| #541 | Report of the Meeting of the British Association for the Advancement of Science. -- United Kingdom -Spojené království Velké Británie : London : J. Murray, 1884 |
| #542 | Report of the National Conference on Weights and Measures. -- Spojené státy americké - United States : Washington : U.S. Government Printing Office, 1928-1989 |
| #543 | Reports of Research Institute for Applied Mechanics. -- Fukuoka : Research Institute for Applied Mechanics, 1972-1998. -- ISSN 0023-6195 |
| #544 | Reports of the Faculty of Science Kagoshima University. -- Kagoshima : Kagoshima University, 1969-1996. -- ISSN 0385-4019 |
| #545 | Reports of the Institute of High Speed Mechanics, Tohoku University. Series B, Technology. -- Japonsko : Tohoku Daigaku Kenkyujo hokoku. Kogaku - Soku-Ken, 1951-1989. -- ISSN 0370-5315 |
| #546 | Reports of the Research Institute of Electrical Communication, Tohoku University. Series B, Technology. -- Japonsko : Sendai : Tohoku University, 1951-1975. -- ISSN 0563-6531 |
| #547 | Research. -- United Kingdom -Spojené království Velké Británie : London : Ashbourne Publ.,, 1968-1971 |
| #548 | Research. -- London : Butterworth, 1947- |
| #549 | Research : a journal of science and its applications. -- Spojené království Velké Británie a Severního Irska : London : Butterworths Scientific Publications, 1947-1957 |
| #550 | Research applied in chemistry. -- United Kingdom -Spojené království Velké Británie : London : Butterworths Scientific Publishers, 1958-1962 |