Environments of coal deposition /
Wedi'i Gadw mewn:
| Awdur Corfforaethol: | |
|---|---|
| Awduron Eraill: | , |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: | Boulder, Colo. : Geological Society of America, 1969. |
| Cyfres: | Special papers (Geological Society of America) ;
114. |
| Pynciau: |
Skillman Lower Level
| Rhif Galw: |
550.6 G34s no. 114 |
|---|