Program: HathiTrust Digital Library
- Publisher: Columbus Laboratories, for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington, D.C.
- Print ISSN: 0093-4267
- Electronic ISSN:
- OCLC Number: 1792070
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1969-1970
|
committed to retain | 2012-12-04 | HTDL |
|