Author: Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 52
Book Description
Geologic Factors in Predicting Coal Mine Roof-rock Stability in the Upper Kittanning Coalbed, Somerset County, Pa
Author: Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 52
Book Description
Geologic Factors Causing Roof Instability and Methane Emission Problems
Author: Charles M. McCullochPublisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 34
Book Description
Report of Investigations
Author: Coal Mine Roof Rating (CMRR)
Author: Gregory M. MolindaPublisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 92
Book Description
Energy Research Abstracts
Author: Fossil Energy Update
Author: Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 984
Book Description
Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 860
Book Description
Influence of Overlying Strata on Methane Emissions in a Northern West Virginia Coal Mine
Author: James P. UleryPublisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 24
Book Description
Water Jet Perforation
Author: Benjamin W. HaynesPublisher:
ISBN:
Category : Aluminum oxide
Languages : en
Pages : 728
Book Description