Wells, Clayton J. <br/><br/>
Hickory Valley phosphate deposit in Independence County, Arkansas,  with especial reference to economic possibilities of North Arkansas phosphate region, 
by Clayton J. Wells.  Including preliminary geologic map of central part of Batesville manganese district, Arkansas, prepared by the United States Geological Survey, 1949. 
 - Little Rock,  1949. 
 - 37 p.  illus., fold. map.  23 cm. 
<br/><br/>Selected bibliography. 
<br/><br/><label>LCCN: </label>gs 50000031  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phosphates--Arkansas--Independence County.
<br/><br/><label>LC Class. No.: </label>QE87  / .A2 no. 15 
<br/><br/><label>Dewey Class. No.: </label>553/.64