Wybergh, Wilfrid John,  1868- <br/><br/>
The economic geology of Sabie and Pilgrims Rest / 
by W.J. Wybergh ; published by authority of the Honorable the Minister of Mines and Industries. 
 - Pretoria :  Govt. Print. and Stationery Office,  1925. 
 - 124, [4] p. :  ill., maps ;  24 cm. 
 - Memoir ;  no. 23 .
 - Memoir (Geological Survey (South Africa)) ;  23. .
<br/><br/> At head of title: Union of South Africa. Department of Mines and Industries. Geological Survey.  Two colored maps on 2 folded sheets in pocket. 
<br/><br/>Includes bibliographical references (p. 11) and index. 
<br/><br/><label>LCCN: </label>gs 26000226  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Economic--South Africa--Sabie.<br/>Geology, Economic--South Africa--Pilgrim's Rest.
<br/><br/><label>LC Class. No.: </label>QE324  / .A3 no. 23