| #1261 | Clean products and processes. -- Berlin : Springer, 1998-2002. -- ISSN 1435-2974 print. -- ISSN 1436-722X online |
| #1262 | Clean technologies and environmental policy. -- Berlin : Springer, 2002-. -- ISSN 1618-954X print. -- ISSN 1618-9558 online |
| #1263 | Cleaning & maintenance. -- UNITED KINGDOM : Cleaning & maintenance, 1953-. -- ISSN 1473-723X |
| #1264 | Cleaning maintenance and big buildings management. -- London : Turret Press, 1979-1983. -- ISSN 0143-0963 |
| #1265 | Cleanroom technology : European journal of contamination control. -- Sevenoaks : Polygon Media, 1995-. -- ISSN 1365-5531 |
| #1266 | Clefs CEA. -- Paris : Commissariat a l'énergie atomique, 1986-. -- ISSN 0298-6248 print. -- ISSN 1625-9718 online |
| #1267 | Click!. -- Praha : Grafika Publishing, 2005-2008. -- ISSN 1801-2345 |
| #1268 | Clinica chimica acta. -- Amsterdam : Elsevier, 1956-. -- ISSN 0009-8981 print. -- ISSN 1873-3492 online |
| #1269 | Clinical laboratory international. -- Brussels : PanEuropean Publishing, 1977-. -- ISSN 1373-1580 |
| #1270 | Clinical otolaryngology. -- Oxford : Blackwell, 1976-. -- ISSN 1749-4478 print. -- ISSN 1749-4486 online |