Guides to the freshwater Invertebrates of Southern Africa – Crustacea I Guides to the freshwater Invertebrates of Southern Africa - Crustacea I
The development of a production facility for standard laboratory test organisms for ecotoxicological research The development of a production facility for standard laboratory test organisms for ecotoxicological research
The biological and chemical database – User manual The biological and chemical database - User manual
Status report on the Kruger National Park Rivers research programme: A synthesis of results and assessment of progress to January 1996 Status report on the Kruger National Park Rivers research programme: A synthesis of results and assessment of progress to January 1996
The occurrence and accumulation of selected heavy metals in freshwater ecosystems affected by mine and industrial polluted effluent The occurrence and accumulation of selected heavy metals in freshwater ecosystems affected by mine and industrial polluted effluent