Willemse, Johannes,  1909-1967. <br/><br/>
The gold occurrences south-west of Pietersburg, 
by J. Willemse. Publication of the Geological Survey Division. 
 - Pretoria,  The Government Printer,  1938. 
 - 38 p.  incl. tables, vii pl. (incl. 3 fold. maps)  24 cm. 
 - South Africa. Geological Survey. Geological series. Bulletin  no. 12 .
 - Geological series. Bulletin (South Africa.  Geological Survey Division) ;  no. 12. .
<br/><br/> At head of title:  Union of South Africa.  Department of Mines. 
<br/><br/>"Literature": p. 38. 
<br/><br/><label>LCCN: </label>gs 40000175  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gold mines and mining--South Africa.<br/>Gold.
<br/><br/><label>LC Class. No.: </label>QE325  / .A53 no. 12