| #71 | 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 | 
| #72 | Colloid and polymer science. -- Berlin : Springer, 1974-. --  ISSN 0303-402X print. --  ISSN 1435-1536 online | 
| #73 | Coloration technology. -- Bradford : Society of Dyers and Colourists, 2001-. --  ISSN 1472-3581 print. --  ISSN 1478-4408 online | 
| #74 | Colourage. -- Bombay : Colour Publications, 1954-. --  ISSN 0010-1826 | 
| #75 | Communications of the ACM. -- New York : Association for Computing Machinery, 1959-. --  ISSN 0001-0782 print. --  ISSN 1557-7317 online | 
| #76 | Computers & chemistry. -- Oxford : Pergamon, 1976-2003. --  ISSN 0097-8485 print. --  ISSN 1879-0763 online | 
| #77 | Computerworld. -- Praha : IDG Czech, 1990-. --  ISSN 1210-9924 print. --  ISSN 1212-6810 online | 
| #78 | Contemporary organic synthesis. -- Lechtworth : Royal Society of Chemistry, 1994-1997. --  ISSN 1350-4894 | 
| #79 | Control engineering. -- Des Plaines : Cahners, 1954-. --  ISSN 0010-8049 | 
| #80 | Current contents, Life sciences. -- Philadelphia : Institute for Scientific Information, 1967-. --  ISSN 0011-3409 |