TY  - BOOK
AU  - Du Plessis,Anja
TI  - Freshwater challenges of South Africa and its upper Vaal River: current state and outlook 
SN  - 9783319841748 (pbk.)
U1  - 628.1 
PY  - 0000///Springer,
PB  - Switzerland
KW  - Water-supply
N1  - Includes reference
ER  -