| #861 | Civil engineering in Japan. -- Tokyo : Japan Society of Civil Engineers, 1961-. -- ISSN 0578-3747 |
| #862 | Classica et mediaevalia. -- Copenhagen : Museum Tusculanum Press, 1938-. -- ISSN 0106-5815 print. -- ISSN 1604-9411 online |
| #863 | Classical antiquity. -- Berkeley : University of California, 1982-. -- ISSN 0278-6656 print. -- ISSN 1067-8344 online |
| #864 | Classical quarterly. -- Cambridge : Cambridge University Press, 1907-. -- ISSN 0009-8388 print. -- ISSN 1471-6844 online |
| #865 | Classical review. -- Cambridge : Cambridge University Press, 1887-. -- ISSN 0009-840X print. -- ISSN 1464-3561 online |
| #866 | Clinica chimica acta. -- Amsterdam : Elsevier, 1956-. -- ISSN 0009-8981 print. -- ISSN 1873-3492 online |
| #867 | CODATA newsletter. -- Frankfurt am Main : International Council of Scientific Unions, 1968-. -- ISSN 0538-6918 |
| #868 | 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 |
| #869 | Collection Symposium series. -- Praha : Institute of Organic Chemistry and Biochemistry, 1999-. -- ISSN 2464-8183 |
| #870 | Colloquium Mathematicum. -- Warszawa : Instytut Matematyczny PAN, 1947-. -- ISSN 0010-1354 print. -- ISSN 1730-6302 online |