6. Coal.
| Předmět: | |
|---|---|
| Zdroj: | Monthly Energy Review. Apr2015, p91-99. 9p. |
| Abstrakt: | Several charts on U.S. Energy Information Administration's Monthly Energy Review of coal industry for April 2015 are presented including field production, waste coal supplied and export and import trade. |
| Databáze: | GreenFILE |
| Externí odkaz: |
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