A guide to the collection of gemstones in the Geological Museum (Museum of Practical Geology)
Wedi'i Gadw mewn:
| Awdur Corfforaethol: | |
|---|---|
| Awduron Eraill: | , |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
London,
H. M. Stationery Off.,
1951.
|
| Rhifyn: | 3d ed. rev. |
| Pynciau: |
CARM 1 Store
| Rhif Galw: |
A2:AJ18B0 B05166 |
|---|---|
| Copi 1 | Ar gael Gwneud Cais |