Geologic investigation of roof and floor strata : longwall demonstration, Old Ben Mine no. 24: Prediction of coal balls in the Herrin Coal : final technical report, part 2
Publication Information:
Key Details:
Catalog
CG1983-02
Publication Year
1983
Author
by Philip J. DeMaris, Robert A. Bauer, Richard A. Cahill, Heinz H. Damberger