Program: HathiTrust Digital Library
- Publisher: Division of Library Development, State Library of Pennsylvania
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 31080277
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
3rd.ed. 1991; 4th.ed. 1992
|
committed to retain | 2014-11-13 | HTDL |
|