Richards, Robert H. <br/><br/>
Text book of ore dressing/ 
Robert H. Richards, Charles E. Locke 
 - 3rd ed. 
 - New York:  McGraw-Hill,  c1953 
 - xiii, 608 p.:  ill.;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> Rs. 130.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ore dressing<br/>Smelting<br/>Flotation<br/>Screens (Mining)
<br/><br/><label>Dewey Class. No.: </label>622.7