Circular.
- Publisher: Purdue University
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 29833496
- Subject: Engineering Periodicals.
- Subject code: T
- Publication history: No. 1-
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | no.1-2; no.1-2 (1918-20); no.3 | permanent |