Lindroth, David P. <br/><br/>
Electrical properties and attenuation distance of upper Pennsylvanian coal measure rock from southwestern Pennsylvania / 
by David P. Lindroth, Carl F. Wingquist and Andrew L. Dehler. 
 - Washington :  U.S. Dept. of the Interior, Bureau of Mines,  1984. 
 - 27 p. :  ill. 
 - Report of investigations ;  8864 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rocks--Electric properties.<br/>Ground penetrating radar.<br/>Coal mines and mining--Safety measures.--Pennsylvania<br/>Geology--Pennsylvania.
<br/><br/><label>Dewey Class. No.: </label>622.8