| #91 | Cenový věstník. -- Praha : Ministerstvo financí České republiky, 1973-. -- ISSN 1210-0919 |
| #92 | Ceramics-Silikáty. -- Prague : Institute of Chemical Technology, 1990-. -- ISSN 0862-5468 print. -- ISSN 1804-5847 online |
| #93 | CIM bulletin. -- Montréal : Canadian Institute of Mining and Metallurgy, 1968-2006. -- ISSN 0317-0926 |
| #94 | CIM magazine. -- Montreal : Canadian Institute of Mining, Metallurgy and Petroleum, 2006-. -- ISSN 1718-4177 |
| #95 | CIO Business World. -- Praha : IDG Czech a.s., 2009-. -- ISSN 1803-7321 |
| #96 | CIWM : The Journal for Waste & Resource Management Professionals. -- Northampton : Chartered Institution of Wastes Management, 2006-. -- ISSN 1751-5602 |
| #97 | Clays and clay minerals. -- Long Island City : Pergamon, 1952-. -- ISSN 0009-8604 print. -- ISSN 1552-8367 online |
| #98 | Coal. -- Chicago : Maclean Hunter, 1988-1996. -- ISSN 1040-7820 |
| #99 | Coal age. -- Overland Park : Intertec, 1996-. -- ISSN 1091-0646 |
| #100 | Collection of Czechoslovak Chemical Communications. -- Praha : Ústav organické chemie a biochemie Akademie věd České republiky, 1929-2011. -- ISSN 0010-0765 print. -- ISSN 1212-6950 online |