Moebs, Noel N. <br/><br/>
Geologic and ground-control aspects of an experimental shortwall operation in the upper Ohio Valley / 
by Noel N. Moebs and Ernest A. Curth. 
 - [Washington, D.C.] :  U.S. Dept. of the Interior,  1976. 
 - 30 p. :  ill. 
 - Report of investigations / Bureau of Mines, U.S. Department of the Interior ;  8112 .
 - Report of investigations (U.S. Department of the Interior.  8112 .
<br/><br/> Based on work done under a cooperative agreement with the Valley Camp Coal Co. 
<br/><br/><label>LCCN: </label>92045033 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining geology--Ohio Valley area.<br/>Coal mines and mining--Ohio Valley area.