Du Plessis, Anja. <br/><br/>
Freshwater challenges of South Africa and its upper Vaal River :  current state and outlook / 
Anja Du Plessis. 
 -  Switzerland :  Springer, 
 - xiii, 164 p. :  ill. ;  25 cm. 
<br/><br/>Includes reference. 
<br/><br/><label>ISBN: </label>9783319841748 (pbk.) 
<br/><br/><label>LCCN: </label>2016962704 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply.
<br/><br/><label>Dewey Class. No.: </label>628.1  / DUP