[PDF] Investigation Of Longwall Gateroad Roof Support Characteristics At Powhatan No 4 Mine Full Read

Language: en
Pages: 490

Authors: Alexander May

Categories: Acmite

Type: BOOK - Published: 1982 - Publisher:

Language: en
Pages: 18

Authors: Gregory J. Chekan

Categories: Caving mining

Type: BOOK - Published: 1982 - Publisher:

Language: en
Pages:

Authors:

Categories: Mineral industries

Type: BOOK - Published: 1985 - Publisher:

Language: en
Pages: 374

Authors: K. O. Bennington

Categories: Acmite

Type: BOOK - Published: 1982 - Publisher:

Language: en
Pages: 148

Authors: United States. Bureau of Mines

Categories: Fuel

Type: BOOK - Published: 1984 - Publisher: