De Bruyn, I.A. <br/><br/>
The Occurrence of Sinkholes and Subsidence Depressions in the Far West Rand and Gauteng Province, South Africa, and Their Engineering Implications 

 - Boulder, CO  Geological Society of America  August 2001 
 - pp. 281-295  ilus., tbl. 
<br/><br/><label>ISSN: </label>1078-7275 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CAVIDADES SUBTERRANEAS<br/>DOLINA DE HUNDIMIENTO<br/>DOLOMITA<br/>SUBSIDENCIA
<br/><br/><label>Subjects--Geographic Terms: </label><br/>SUDAFRICA