Washability characteristics of some Philippine coals / Telesforo A. Ejercito and Helen R. Lewis.
| Hovedforfatter: | |
|---|---|
| Andre forfattere: | |
| Format: | Bog |
| Sprog: | Filipino |
| Udgivet: |
Manila
[Bureau of Mines]
c1967.
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| Serier: | Philippines, Republic. Bureau of Mines. Report of investigations; No. 64.
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| Fag: |