1. Standard Methods for the Examination of Waters and Wastewater;American Public Health Association (APHA),1992
2. Development of an holistic approach for assessing environmental flow requirements of riverine ecosystems;Arthington,1992
3. Policy Proposals for the Wetlands of Natal and Kwazulu;Begg,1990
4. A Geochemical Survey of the Underground Water Supplies of the Union of South Africa with Particular Reference to their Utilization in Power Production and Industry. Geological Survey Memoirs No. 41;Bond,1946
5. Conservation status Southern African wetlands;Breen,1989