Dunrud, C Richard <br/><br/>
Some engineering geologic factors controlling coal mine subsidence in Utah and Colorado  

 - Washington:   United Sates Government Printing Office,   1976 
 - 39p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology 
<br/><br/><label>Subjects--Index Terms: </label>Controlling  
<br/><br/><label>Universal Decimal Class. No.: </label>622.33  / L6