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Multislice mining for thick western coal seams /
I tiakina i:
| Kaituhi matua: | |
|---|---|
| Ētahi atu kaituhi: | , |
| Hōputu: | Tē mōhiotia |
| Reo: | Ingarihi |
| I whakaputaina: |
PGH [i.e. Pittsburgh] Pa. :
U.S. Dept. of the Interior, Bureau of Mines,
1989.
|
| Rangatū: | Information circular (United States. Bureau of Mines)
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| Ngā marau: | |
| Tags: |
Tāpirihia he Tūtohu
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| Whakaahuatanga ōkiko: | ii, 27 p. ; ill. |
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