Moebs, Noel N. <br/><br/>
Geologic and ground-control aspects of an experimental shortwall operation in the upper Ohio Valley 
Moebs, Noel N.; Curth, Ernest A. 
 - Washington  Bureau of mines  1976 
 - 30 p. 
 - RI 8112 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>GEOLOGIA<br/>GEOLOGY
<br/><br/><label>Subjects--Geographic Terms: </label><br/>OHIO RIVER VALLEY REGION (UNITED STATES)
<br/><br/><label>Subjects--Index Terms: </label>MINAS DE CARBON MINERIA GEOLOGIA MINERAL COAL MINES MINING MINING GEOLOGY 
<br/><br/><label>Universal Decimal Class. No.: </label>55