Washability characteristics of some Philippine coals
| Egile nagusia: | |
|---|---|
| Beste egile batzuk: | |
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Manila
[Bureau of Mines]
1967.
|
| Saila: | Philippines (Republic) Bureau of Mines Report of investigations
no.64 |
| Gaiak: |