Biblio

J. E. Gould, “Catching up - upgrading Botswana's rainwater catchment systems”, Waterlines, an international journal of water, sanitation and waste, pp. p. 13, 19-20 : 2 fig., 1 map, 2 photogr., 1997.

J. E. Gould, “An assessment of roof and ground catchment systems in rural Botswana”, in Proceedings of the Third International Conference on Rain Water Cistern Systems : 14-16 January 1987, Khon Kaen, Thailand, 1987, pp. P. C2-1 - C2-17 : fig., tab.

J. E. Gould, “An assessment of rainwater catchment systems in Botswana”. University of Alberta, Edmonton, Alta, Canada, p. xvi, 222 p.: fig., tab., photogr., 1985.