Van Rensburg, W. C. J. <br/><br/>
South Africa's strategic minerals :  pieces on a continental chess board / 
by W.C.J. van Rensburg and D.A. Pretorius. ; edited by Helen Glen. 
 - Johannesburg :  Valiant Publishers,  1977. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label> R12.00 ( 
<br/><br/><label>LCCN: </label>78302069 //r86 
<br/><br/><label>Nat. Bib. No.: </label>SA*** 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineral industries -- South Africa.--Mineral industries -- South Africa.
<br/><br/><label>LC Class. No.: </label>HD9506.S72  / V36 
<br/><br/><label>Dewey Class. No.: </label>338.2/0968