Index to signal literature /
- Publisher: Times Pub. Co.
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 8762124
- Subject: Railroads Signaling Bibliography Periodicals.
- Subject code: Z
- Publication history: Vol. 1 (Oct. 1910).
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | v.1 | permanent |