The Vaal Dam is of great importance to South Africa as it ensures a good supply of water to the Witwatersrand complex, South Africans most important industrial and mining centre, and the problem of pollution and protection of the waters flowing into this dam is therefore of very great significance
Reference:
Archibald, REM. 1971. Diatoms from the Vaal dam catchment area Transvaal, South Africa. Botanica Marina, Vol. 14, pp 17-70.
Archibald, R. (1971). Diatoms from the Vaal dam catchment area Transvaal, South Africa. http://hdl.handle.net/10204/4851
Archibald, REM "Diatoms from the Vaal dam catchment area Transvaal, South Africa." (1971) http://hdl.handle.net/10204/4851
Archibald R. Diatoms from the Vaal dam catchment area Transvaal, South Africa. 1971; http://hdl.handle.net/10204/4851.