Geological features that contribute to ground control problems in underground coal mines /
I tiakina i:
| Kaituhi rangatōpū: | |
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| Ētahi atu kaituhi: | |
| Hōputu: | Pukapuka |
| Reo: | Ingarihi |
| I whakaputaina: |
Avondale, Md. :
U.S. Dept. of the Interior, Bureau of Mines,
1993.
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| Rangatū: | Information circular ;
9370 Information circular (United States. Bureau of Mines) ; 9370 |
| Ngā marau: | |
| Tags: |
Tāpirihia he Tūtohu
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Matheson Library
| Tau karanga: |
622 U58
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|---|---|
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Tārua
Item__Lost-
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