Directory of libraries and information sources in the Philadelphia area.
- Publisher: Philadelphia Chapter, Special Libraries Association
- Print ISSN: 0278-5684
- Electronic ISSN:
- OCLC Number: 3780412
- Subject: Libraries Pennsylvania Philadelphia Region Directories.
- Subject code: Z
- Publication history: Began with 13th ed. (1973).
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 9th ed. 1956; 1977 (v.14); 18th.ed. 1987; 19th.ed. 1989; 20th.ed. 1991 | permanent |