Biblio

S. R. Pollard, D. Toit, du, Reddy, Y., and Tlou, T., “Guidelines for catchment management strategies : towards equity, efficiency and sustainability in water resources management”. South Africa, Department of Water Affairs and Forestry, Pretoria, South Africa, p. xiv, 160 p. : 20 boxes, 38 fig., 10 tab., 2007.

S. Smits, Pollard, S., D. Toit, du, Butterworth, J., and Moriarty, P. B., “Modelling scenarios for water resources management in the Sand River Catchment, South Africa”, vol. no. 8. IRC and Natural Resources Institute, University of Greenwich, Chatham, UK, p. 20 p. : 5 fig., 8 tab., 2004.