Daniels, Jeffrey J. <br/><br/>
Computer-assisted interpretation of geophysical well logs in a coal depositional environment, Illinois Basin, Kentucky 

 - Washington, D.C.  U.S. Geological Survey  1980 
 - 44 p.  ilus., tbls., diagrs. 
 - U.S. Geological Survey Bulletin  n.1509 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>CARBON<br/>GEOFISICA<br/>MINAS Y MINERIA<br/>PERFORACION<br/>PROCESAMIENTO DE DATOS
<br/><br/><label>Subjects--Geographic Terms: </label><br/>ESTADOS UNIDOS