| #501 | Canadian journal of microbiology. -- Ottawa : National Research Council, 1954-. -- ISSN 0008-4166 print. -- ISSN 1480-3275 online |
| #502 | Canadian journal of physiology and pharmacology. -- Ottawa : National Research Council of Canada, 1964-. -- ISSN 0008-4212 print. -- ISSN 1205-7541 online |
| #503 | Canadian journal of research, Section C, Botanical sciences. -- Ottawa, Ont. : National Research Council., 1935-1950. -- ISSN 0366-7405 |
| #504 | Canadian journal of zoology. -- Ottawa : National Research Council of Canada, 1951-. -- ISSN 0008-4301 print. -- ISSN 1480-3283 online |
| #505 | Cancer biochemistry biophysics. -- New York : Gordon and Breach Science Publishers, 1974-. -- ISSN 0305-7232 |
| #506 | Candollea. -- Geneve : Conservatoire et Jardin botaniques, 1924-. -- ISSN 0373-2967 |
| #507 | Carbon. -- UNITED KINGDOM : Oxford : Pergamon,, 1963-. -- ISSN 0008-6223 print. -- ISSN 1873-3891 online |
| #508 | Carbon management. -- London : Future Science, 2010-. -- ISSN 1758-3004 print. -- ISSN 1758-3012 online |
| #509 | Caryologia : international journal of cytology, cytosystematics and cytogenetics. -- Abingdon : Taylor & Francis, 1948-. -- ISSN 0008-7114 print. -- ISSN 2165-5391 online |
| #510 | Catalysis today. -- Amsterdam : Elsevier, 1987-. -- ISSN 0920-5861 print. -- ISSN 1873-4308 online |