The evolution of industry
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
London
Holt
1948.
|
| Rhifyn: | 2d ed. |
| Cyfres: | Home university library of modern knowledge, no.24
|
| Pynciau: |
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
London
Holt
1948.
|
| Rhifyn: | 2d ed. |
| Cyfres: | Home university library of modern knowledge, no.24
|
| Pynciau: |