Program: HathiTrust Digital Library
- Publisher: Helbing & Lichtenhahn
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 223076408
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1934; 1936; 1939-1947; 1956-1960
|
committed to retain | 2009-06-20 | HTDL |
|