Die beraming van enkele tegno-ekonomiese koëffisiënte vir spilpuntkosteberekening Die beraming van enkele tegno-ekonomiese koëffisiënte vir spilpuntkosteberekening
Die jaarlikse reënval, afloop en verhoging in afloop met verhoogde reënval vir die Vaalrivier-opvanggebied by Vaaldam Die jaarlikse reënval, afloop en verhoging in afloop met verhoogde reënval vir die Vaalrivier-opvanggebied by Vaaldam
The impact of a paper mill effluent spill on the fish populations of the Elands and Crocodile Rivers (Incomati System, Transvaal) The impact of a paper mill effluent spill on the fish populations of the Elands and Crocodile Rivers (Incomati System, Transvaal)
A contribution to the knowledge of South African coastal vleis: The limnology and phytoplankton periodicity of Princess Vlei, Cape Peninsula A contribution to the knowledge of South African coastal vleis: The limnology and phytoplankton periodicity of Princess Vlei, Cape Peninsula
A preliminary investigation of the concentration of selected metals in the tissues and organs of the tigerfish (Hydrocynus vittatus) from the Olifants River, Kruger National Park, South Africa A preliminary investigation of the concentration of selected metals in the tissues and organs of the tigerfish (Hydrocynus vittatus) from the Olifants River, Kruger National Park, South Africa
An hydraulic based model for simulating monthly runoff and erosion An hydraulic based model for simulating monthly runoff and erosion
Studies on the treatment of dairy wastes in an algal pond Studies on the treatment of dairy wastes in an algal pond
Feeding frequency, daily ration and feed utilisation of an optimal dry diet by early juvenile Oreochromis mossambicus Feeding frequency, daily ration and feed utilisation of an optimal dry diet by early juvenile Oreochromis mossambicus
Observations on the production of the giant freshwater prawn, Macrobrachium rosenbergii, in the Transvaal, South Africa : Observations on the production of the giant freshwater prawn, Macrobrachium rosenbergii, in the Transvaal, South Africa :
Small-scale tests to determine the feasibility of reverse osmosis and ultrafiltration for the treatment of industrial effluents Small-scale tests to determine the feasibility of reverse osmosis and ultrafiltration for the treatment of industrial effluents