| #221 | Canadian Journal of Research. -- Ottawa : National Research Council of Canada, 1929-1935. -- ISSN 0366-6581 |
| #222 | Canadian journal of research, Section A, Physical sciences. -- Toronto : Micromedia, 1935-1950. -- ISSN 0366-7383 |
| #223 | Case studies in atomic physics. -- Amsterdam : North Holland Publ. Co., 1972-1975. -- ISSN 0300-4503 |
| #224 | Catalysis today. -- Amsterdam : Elsevier, 1987-. -- ISSN 0920-5861 print. -- ISSN 1873-4308 online |
| #225 | Celestial mechanics : an international journal of space dynamics. -- NETHERLANDS : Dordrecht ; Boston : Reidel, 1969-1988. -- ISSN 0008-8714 |
| #226 | Central European Journal of Physics. -- Warsaw : Central European Science Journals, 2003-. -- ISSN 1895-1082 print. -- ISSN 1644-3608 online |
| #227 | CERN courier. -- Geneva : CERN, 1959-. -- ISSN 0304-288X print. -- ISSN 2077-9550 online |
| #228 | Circuit world : journal of the Institute of circuit technology. Technical journal of the printed circuit and interconnection federation. -- Bingley : Emerald, 1974-. -- ISSN 0305-6120 print. -- ISSN 1758-602X online |
| #229 | Classical and quantum gravity. -- Bristol : Institute of Physics, 1984-. -- ISSN 0264-9381 print. -- ISSN 1361-6382 online |
| #230 | Clefs CEA. -- Paris : Commissariat a l'énergie atomique, 1986-. -- ISSN 0298-6248 print. -- ISSN 1625-9718 online |