| #241 | Reading & writing. -- Dordrecht : Kluwer Academic Publishers, 1989-. -- ISSN 0922-4777 print. -- ISSN 1573-0905 online |
| #242 | 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 |
| #243 | Research in higher education. -- New York : Springer Science, 1973-. -- ISSN 0361-0365 print. -- ISSN 1573-188X online |
| #244 | Research in science education. -- Brisbane : Australian Science Education Research Association, 1971-. -- ISSN 0157-244X print. -- ISSN 1573-1898 online |
| #245 | Research news. -- Ann Arbor : University of Michigan, 1950-1973. -- ISSN 0041-9842 |
| #246 | Research strategies. -- Oxford : Pergamon Press, 1983-2005. -- ISSN 0734-3310 print. -- ISSN 1879-0666 online |
| #247 | Research studies. -- Pullman : Washington State University Press, 1959-1983. -- ISSN 0043-0838 |
| #248 | Resonance : Journal of Science Education. -- Bangalore : Indian Academy of Sciences, 1996-. -- ISSN 0971-8044 print. -- ISSN 0973-712X online |
| #249 | Revista de Educacion de las Ciencias. -- Bogota : Fundacion Revista de Eduacacion de las Ciencias, 1999-. -- ISSN 0124-5481 |
| #250 | Revista espanola de pedagogia. -- Madrid : Instituto "San José de Calasanz" de Pedagogía. Consejo Superior de Investigaciones Científicas, 1943-. -- ISSN 0034-9461 |