Railroad technology and manpower in the 1970's.
Wedi'i Gadw mewn:
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Wash. :
Govt. Pr.,
1972.
|
| Cyfres: | Bulletin. Part 2, Problems of union strategy and tactics, articles written 1931-1940. / (United States - Bureau of Labor Statistics ;
1717) |
| Pynciau: |
| Mae'n ddrwg gennym, ni ellir dod o hyd i unrhyw awgrymiadau |