Program: HathiTrust Digital Library
- Publisher: Penton Pub. Co.
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 6371678
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
c.1 ed.1 1915; 2d 1917; c.1 ed.3 1919; v.4 yr.1921
|
committed to retain | 2016-07-07 | HTDL |
|