Author: Gregory J. ChekanPublisher:
ISBN:
Category : Longwall mining
Languages : en
Pages : 24
Book Description
Effects of Abandoned Multiple Seam Workings on a Longwall in Virginia PDF Download
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Author: Gregory J. ChekanPublisher:
ISBN:
Category : Longwall mining
Languages : en
Pages : 24
Book Description
Author: Gregory J. Chekan
Author: Gregory J. Chekan
Author: 
Author: 
Author: 
Author: United States. Bureau of Mines
Author: United States. Bureau of Mines. Office of Public Information
Author: Christopher Mark
Author: United States. Bureau of Mines. Branch of Editorial Services
Author: United States. Bureau of Mines