| #41 | Canadian chemical processing. -- Don Mills : Southam Business, 1951-1984. -- ISSN 0008-3186 |
| #42 | Canadian journal of chemical engineering. -- Ottawa : Canadian Society for Chemical Engineering, 1957-. -- ISSN 0008-4034 print. -- ISSN 1939-019X online |
| #43 | Carbohydrate research. -- Amsterdam : Elsevier, 1965-. -- ISSN 0008-6215 print. -- ISSN 1873-426X online |
| #44 | Catalysis communications. -- Amsterdam : Elsevier, 2000-. -- ISSN 1566-7367 print. -- ISSN 1873-3905 online |
| #45 | Catalysis letters. -- Amsterdam : Baltzer Science Publishers, 1987-. -- ISSN 1011-372X print. -- ISSN 1572-879X online |
| #46 | Catalysis reviews, Science and engineering. -- New York : Marcel Dekker, 1967-. -- ISSN 0161-4940 |
| #47 | CATTech : The Magazine of Catalysis Sciences, Technology, and Innovation. -- Amsterdam : Baltzer Science Publishers, 1997-. -- ISSN 1384-6566 print. -- ISSN 1572-8811 online |
| #48 | Cellulose. -- London : Chapman & Hall, 1994-. -- ISSN 0969-0239 print. -- ISSN 1572-882X online |
| #49 | Ceramic engineering and science proceedings. -- Westerville : American Cermaic Society, 1980-. -- ISSN 0196-6219 print. -- ISSN 1940-6339 online |
| #50 | Ceramic source. -- Columbus : American Cermaic Society, 1986-2003. -- ISSN 8756-8187 |