| #231 | CNES magazine. -- Paris : Centre national d'études spatiales, 1997-. -- ISSN 1283-9817 |
| #232 | Colloid journal of the Russian Academy of Sciences. -- New York : Consultants Bureau, 1992-. -- ISSN 1061-933X print. -- ISSN 1608-3067 online |
| #233 | Colloids and surfaces, A, Physicochemical and engineering aspects. -- Amsterdam : Elsevier, 1993-. -- ISSN 0927-7757 print. -- ISSN 1873-4359 online |
| #234 | Colloids and surfaces, B, Biointerfaces. -- Amsterdam : Elsevier, 1993-. -- ISSN 0927-7765 print. -- ISSN 1873-4367 online |
| #235 | Colloids and surfaces. -- Amsterdam : Elsevier, 1980-1993. -- ISSN 0166-6622 print. -- ISSN 1873-4340 online |
| #236 | Commentationes physico-mathematicae. -- Helsinki : Society Scientiarum Fennica, 1922-1994. -- ISSN 0069-6609 |
| #237 | Comments on atomic and molecular physics. -- New York : Gordon and Breach, 1969-1998. -- ISSN 0010-2687 |
| #238 | Comments on solid state physics. -- UNITED STATES : [New York, Gordon and Breach, Science Publishers], 1968-1986. -- ISSN 0308-1206 |
| #239 | Communications from the Kamerlingh Onnes Laboratory of the University of Leiden. -- Leiden : Ijdo, 1931-. -- ISSN 0022-8141 |
| #240 | Communications in computational physics. -- : IGI Science. -- ISSN 1991-7120 online |