Application of the equilibrium partitioning method to derive copper and zinc quality criteria for water and sediment: A South African perspective

Guides to the freshwater Invertebrates of Southern Africa – Crustacea I

A global overview of inter-basin water transfer schemes

SA Waterbulletin November 1999

An experimental study of the effect of Acacia Mearnsii (black wattle trees) on streamflow in the Sand River, Zwartkops River catchment, Eastern Cape

Guidelines for the use of septic tank systems in the South African coastal zone

Filamentous organism bulking in nutrient removal activated sludge systems: Paper 7: Exploratory experimental investigations

Filamentous organism bulking in nutrient removal activated sludge systems: Paper 8: The effect of nitrate and nitrite

Filamentous organism bulking in nutrient removal activated sludge systems: Paper 9: Review of biochemistry of heterotrophic respiratory metabolism

Filamentous organism bulking in nutrient removal activated sludge systems: Paper 10: Metabolic behaviour of heterotrophic facultative aerobic organisms under aerated/unaerated conditions