Program: HathiTrust Digital Library
- Publisher: Technical Economics, Inc.
- Print ISSN: 0021-9312
- Electronic ISSN:
- OCLC Number: 1778528
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.1-2; v.1 1970; v.2 1971
|
committed to retain | 2019-11-28 | HTDL |
|