CG1983-02

Publication Title: 
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 Type: 
Contract Grant Reports
Author: 
by Philip J. DeMaris, Robert A. Bauer, Richard A. Cahill, Heinz H. Damberger
Year: 
1983

Ordering information for Illinois State Geological Survey publications