Production of the sharptooth catfish Clarias gariepinus (Burchell) and the European common carp Cyprinus carpio L. with artificial feeding in polyculture in maturation ponds at Seshego, Lebowa
Programme for Atmospheric Water Supply: Phase 1 (1983-1986) Volume 2: Natural clouds and rain in Nelspruit
Programme for Atmospheric Water Supply: Phase 1 (1983-1986) Volume 3: Experimental seeding of Nelspruit clouds
Research into the evaluation and optimisation of full-scale chemical phosphate removal in biological sewage treatment processes
The ability of an artificially established wetland system to upgrade oxidation pond effluent to meet water quality criteria
Fatty acid utilisation by sludge from full-scale nutrient removal plants, with special reference to the role of nitrate
Modelling techniques for biological reaction systems 1. Mathematical description and model representation