A dictionary of mining, mineral, and related terms,
Wedi'i Gadw mewn:
| Prif Awdur: | |
|---|---|
| Awdur Corfforaethol: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
[Washington,
U.S. Bureau of Mines; for sale by the Supt. of Docs., U.S. Govt. Print. Off.]
1968.
|
| Pynciau: |
CARM 1 Store
| Rhif Galw: |
A2:AL15D2 E01192 |
|---|---|
| Copi 1 | Ar gael Gwneud Cais |