Browsing by Author Poll, Grant
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| Preview | Type | Year | Title | Tags | |
|---|---|---|---|---|---|
![]() | PowerPoint | 2005 | Road Subsidence from Coal Mining | Road Subsidence; Coal Mining |
| Preview | Type | Year | Title | Tags | |
|---|---|---|---|---|---|
![]() | PowerPoint | 2005 | Road Subsidence from Coal Mining | Road Subsidence; Coal Mining |