| #31 | Catalogue des écrits académiques suisses. -- SWITZERLAND : Basel: Schweighauser Verlag der Universitätsbibliothek, 1897-1994. --  ISSN 0374-0498 | 
| #32 | Clinical child and family psychology review. -- New York : Plenum, 1998-. --  ISSN 1096-4037 print. --  ISSN 1573-2827 online | 
| #33 | College composition and communication. -- Urbana : National Council of Teachers of English, 1950-. --  ISSN 0010-096X print. --  ISSN 1939-9006 online | 
| #34 | College English. -- Urbana : National Council of Teachers of English, 1939-. --  ISSN 0010-0994 | 
| #35 | Computers & education. -- New York : Pergamon, 1976-. --  ISSN 0360-1315 print. --  ISSN 1873-782X online | 
| #36 | Contemporary educational psychology. -- San Diego : Academic Press, 1976-. --  ISSN 0361-476X print. --  ISSN 1090-2384 online | 
| #37 | Cultural studies of science education. -- Dordrecht : Springer, 2006-. --  ISSN 1871-1502 print. --  ISSN 1871-1510 online | 
| #38 | Current science. -- Middletown : Xerox Education Publications, 1989-. --  ISSN 0011-3905 | 
| #39 | Currents in pharmacy teaching and learning. -- , 2009-. --  ISSN 1877-1297 | 
| #40 | Člověk a výchova : časopis pro pedagogiku Rudolfa Steinera. -- Semily : České sdružení pro waldorfskou pedagogiku & Asociace Waldorfských škol ČR, 1996-. --  ISSN 2464-5680 |