| #1261 | Claycraft + structural ceramics. -- UNITED KINGDOM : London : London and Sheffield Publishing Co.,, 1964-1973. -- ISSN 0009-8582 |
| #1262 | Clean air. -- Brighton : National Society for Clean Air, 1971-. -- ISSN 0300-5143 |
| #1263 | Clean products and processes. -- Berlin : Springer, 1998-2002. -- ISSN 1435-2974 print. -- ISSN 1436-722X online |
| #1264 | Clean technologies and environmental policy. -- Berlin : Springer, 2002-. -- ISSN 1618-954X print. -- ISSN 1618-9558 online |
| #1265 | Cleaning & maintenance. -- UNITED KINGDOM : Cleaning & maintenance, 1953-. -- ISSN 1473-723X |
| #1266 | Cleaning maintenance and big buildings management. -- London : Turret Press, 1979-1983. -- ISSN 0143-0963 |
| #1267 | Cleanroom technology : European journal of contamination control. -- Sevenoaks : Polygon Media, 1995-. -- ISSN 1365-5531 |
| #1268 | Clefs CEA. -- Paris : Commissariat a l'énergie atomique, 1986-. -- ISSN 0298-6248 print. -- ISSN 1625-9718 online |
| #1269 | Click!. -- Praha : Grafika Publishing, 2005-2008. -- ISSN 1801-2345 |
| #1270 | Clinica chimica acta. -- Amsterdam : Elsevier, 1956-. -- ISSN 0009-8981 print. -- ISSN 1873-3492 online |