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Preliminary analysis of methodologies for mining thin-seam mountaintop coal resources /
I tiakina i:
| Kaituhi matua: | |
|---|---|
| Ētahi atu kaituhi: | , |
| Hōputu: | Tē mōhiotia |
| Reo: | Ingarihi |
| I whakaputaina: |
Washington, DC :
Bureau of Mines,
1990.
|
| Rangatū: | Information circular (United States. Bureau of Mines)
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| Ngā marau: | |
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