Program: HathiTrust Digital Library
- Publisher: Engelhard Minerals & Chemicals Corp
- Print ISSN: 0013-7642
- Electronic ISSN:
- OCLC Number: 64215872
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.1-3 (1960-63); v.4-6 (1963-66); v.7-9 (1966-69); v.10-11 (1969-70)
|
committed to retain | 2015-02-09 | HTDL |
|