| #271 | Hydrology research : an international journal. -- London : IWA Publishing, 2008-. -- ISSN 1998-9563 |
| #272 | Chatař & Chalupář. -- Praha : Časopisy pro volný čas. -- ISSN 1211-5754 |
| #273 | The chemical engineering journal and the biochemical engineering journal. -- Lausanne : Elsevier Sequoia, 1983-1996. -- ISSN 0923-0467 print. -- ISSN 1873-3220 online |
| #274 | Chemické listy. -- Praha : Česká společnost chemická, 1907-. -- ISSN 0009-2770 print. -- ISSN 1213-7103 online |
| #275 | Chemický průmysl. -- Praha : Economia a.s., 1951-1998. -- ISSN 0009-2789 |
| #276 | Chip. -- Praha : Vogel Burda Communications, 1991-. -- ISSN 1210-0684 |
| #277 | Chlazení, klimatizace. -- Praha : ČNTL, 1995-. -- ISSN 1211-1171 |
| #278 | IBM journal of research and development. -- Armonk : International Business Machines Corporation, 1957-. -- ISSN 0018-8646 |
| #279 | IBM systems journal. -- New York : International Business Machines Corp., 1962-2008. -- ISSN 0018-8670 |
| #280 | IEEE transactions on antennas and propagation. -- New York : The Institute of Electrical and Electronics Engineers, 1963-. -- ISSN 0018-926X print. -- ISSN 1558-2221 online |