Program: HathiTrust Digital Library
- Publisher: Pitman Pub. Corp
- Print ISSN: 0511-9138
- Electronic ISSN:
- OCLC Number: 2488685
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1955; 1965; 1972; 1978; 1987
|
committed to retain | 2013-04-22 | HTDL |
|