| #81 | Canadian research and development. -- Toronto : Maclean-Hunter, 1968-1975. -- ISSN 0008-493X |
| #82 | Canadian social trends. -- Ottawa : Statistics Canada, 1986-. -- ISSN 0831-5698 print. -- ISSN 1481-1634 online |
| #83 | Car mechanics. -- UNITED KINGDOM : London : Business Publications Ltd.,, 1958-. -- ISSN 0008-6037 |
| #84 | Carpatica : informatívny bulletin Medzinárodnej komisie pre štúdium karpatskej kultúry pri ČSAV a SAV. -- Bratislava : Veda, 1960-1976. -- ISSN 0528-1768 |
| #85 | Carpatobalcanica. -- Bratislava : SAV, 1977- |
| #86 | Cartonnages emballages modernes. -- FRANCE : Paris : Editions Technorama,, 1980-2013. -- ISSN 0247-8390 |
| #87 | Catalonia. -- Barcelona : Centre Unesco, 1987-1996. -- ISSN 0214-266X |
| #88 | CEGB abstracts. -- UNITED KINGDOM : London: Central Electricity Generating Board, Central Library & Information Services., 1985-. -- ISSN 0267-0372 |
| #89 | CEGB digest. -- UNITED KINGDOM : London: Central Electricity Generating Board, Central Library & Information Services., 1900-. -- ISSN 0374-2792 |
| #90 | Central European Journal of Chemistry. -- Warsaw : Central European Science Journals, 2003-. -- ISSN 1895-1066 print. -- ISSN 1644-3624 online |