American railway signaling principles and practices.
- Publisher:
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 777112985
- Subject: Railroads United States Signaling.
- Subject code:
- Publication history: Chapter 1- 1950-
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | chap.20 1941; chap.17 1947; chap.7 1948; chap.9 1948; chap.21 1948; chap.13 1949; chap.19 1950; chap.10 1951; chap.11 1951; chap.16 1952; chap.1 1953; chap.8 1953; chap.18 1953; chap.4 pt.2 1954; chap.3 1955; chap.2 1956; chap.6 1966; chap.14 1966 | permanent |