Program: HathiTrust Digital Library
- Publisher: Traffic Institute, Northwestern University
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 10961085
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1949 Feb-1950 Dec (v.3, no.2-4); v.5; 1951-1952 (v.5-6); v.6-7; 1953 Jan-Mar (v.7, no.1-3)
|
committed to retain | 2019-10-10 | HTDL |
|