Lenahan, W.C. <br/><br/>
Assay and analytical practice in the south african mining industry 

 - Johannesburg  The South African Institute  2001 
 - 636 p. 
<br/><br/><label>ISBN: </label>620092246 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ores-sampling and estimation
<br/><br/><label>Dewey Class. No.: </label>622.1  / LEN