1. Environmental and health implications of DDT-contaminated fish from the Pongolo Flood Plain;Bouwman;J. Afr. Zool.,1990
2. Gas chromatographic analysis indicates decrease in chlorinated hydrocarbon levels in Northern Zululand;Butler;S. Afr. J. Sci.,1983
3. Contaminant analysis of fillets from Great Lakes Coho Salmon;Clark;J. Great Lakes Res.,1984
4. PCB and organochlorine compounds in marine and estuarine systems;De Kock,1985
5. PCBs and chlorinated hydrocarbon insecticide residues in birds and fish from the Wilderness Lakes system, South Africa;De Kock;Mar. Pollut. Bull.,1987