Shortwall coal mining in the United States.

Creator Personal:

Peng, Syd S., 1939-

Title:

Shortwall coal mining in the United States.

Call Number:

P12412

Date:

1976

Description:

Serial issue. Issued as: West Virginia University. Coal Research Bureau. Technical report, no. 119. "Prepared for publication in Coal Age, 81, 3, (March, 1976), 82-88."

Subject Topical:

Coal mines and mining--Research., Coal mines and mining--Safety measures., Mine roof bolting.