| Abbreviation | Definition |
|---|---|
| BYOD | Build Your Own Dictionary |
| BYOL | Build Your Own Library |
| CA | Chemical Abstracts |
| CADL | Capital Area District Libraries |
| CADL | Capital Area District Library |
| CAIN | Canadian Archival Information Network |
| CAIRS | Computer-Aided Information Research Service |
| CAL | Colorado Association of Libraries |
| CALA | Carolina Academic Library Associates |
| CALA | Columbus Area Library Association |
| CALD | Congress of Academic Library Directors |
| CALIS | China Academic Library Information System |
| CALS | Central Arkansas Library System |
| CALS | Cooperative Academic Library Service |
| CaMMS | Cataloging and Metadata Management Section |
| CanJPublicHealth | Canadian Journal of Public Health (Ottawa) |
| CanMedAssocJ | Canadian Medical Association Journal (Ottawa) |
| CAPAL | Canadian Association of Professional Academic Librarians |
| CAPL | Canadian Association of Public Libraries |
| CAPM | Comprehensive Access to Printed Materials |