Lewis, Robert Moore,  1922- <br/><br/>
Recovery of heavy minerals from North Carolina phosphate tailings / 
by Robert M. Lewis. 
 - Asheville :  Minerals Research Laboratory, School of Engineering, North Carolina State University,  1974. 
 - 10 leaves ;  28 cm. 
 - Report - Minerals Research Laboratory, North Carolina State University ; no. MRL-4 .
 - North Carolina.  State University, Raleigh.  Minerals Research Laboratory.  Report ;  no. MRL-4. .
<br/><br/> Cover title. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>74623874  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heavy minerals.<br/>Phosphate industry--By-products.--North Carolina<br/>Tailings (Metallurgy)
<br/><br/><label>LC Class. No.: </label>TN798  / .L44 
<br/><br/><label>Dewey Class. No.: </label>661/.05/1