| #641 | Realizace staveb : stavební materály - výrobky - technologie - konstrukce. -- Praha : Jaga Media, 2006-. -- ISSN 1802-0631 |
| #642 | Reeves journal. -- Laguna Hills : James E. Henderson. -- ISSN 0048-7066 |
| #643 | Refrigeration and air conditioning. -- Croydon : Emap Maclaren, 1988-1990. -- ISSN 0958-3998 |
| #644 | Refrigeration and air conditioning. -- Croydon : Emap Maclaren, 1970-1981. -- ISSN 0026-8364 |
| #645 | Renewable energy. -- Oxford : Pergamon, 1991-. -- ISSN 0960-1481 print. -- ISSN 1879-0682 online |
| #646 | Resultat. -- Stockholm : Swedish Council for Building Research, 1992-. -- ISSN 0349-8387 |
| #647 | Road materials and pavement design. -- Oxford : Hermes Science, 2000-. -- ISSN 1468-0629 |
| #648 | Rock mechanics. -- Wien : Springer, 1969-1982. -- ISSN 0035-7448 |
| #649 | Rocky mountain construction. -- Denver : Rocky Mountain Construction, 1974-. -- ISSN 0192-3943 |
| #650 | Routes. -- Paris : Association internationale permanente des congrès de la route, 1986-. -- ISSN 1011-1891 |