| Abbreviation | Definition |
|---|---|
| ACLL | Allegheny County Law Library |
| ACLP | Advisory Committee on Library Policy |
| ACPL | Albany County Public Library |
| ACPL | Allen County IN Public Library |
| ACPL | Allen County Public Library |
| ACPL | Amherst County Public Library |
| ACPL | Ark City Public Library |
| ACPL | Arkansas City Public Library |
| ACPL | Athens County Public Libraries |
| ACRL | Association of College & Research Libraries |
| ACRL | Association of College and Research Libraries |
| ACRL | Association of College Research Libraries |
| ACRL/IN | Association of College & Research Libraries - Indiana |
| ACRL/NEC | Association of College & Research Libraries - New England Chapter |
| ACRL/NY | Association of College & Research Libraries - New York |
| ACRL-LA | Association of College & Research Libraries - Los Angeles |
| ACRL-WA | Association of College & Research Libraries - Washington State Chapter |
| ACRS | American Center Reference Service |
| ActaDermVenereol | Acta Dermato-Venereologica |
| ActaMedScand | Acta Medica Scandinavica (Stockholm) |