VAN RENSBURG, LD; DE CLERCQ, WP; BARNARD, JH
 andÂ
DU PREEZ, CC. Case studies from Water Research Commission projects along the Lower Vaal, Riet, Berg and Breede Rivers. Water SA [online].
2011,
vol.37, n.5, pp. 739-749.
ISSN 1816-7950.
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