Biblio

P. Heyns, Seely, M., Montgomery, S., y Pallet, J., Namibia's water : a decision makers' guide. Windhoek, Namibia: Namibia, Ministry of Agriculture, Water and Rural Development, 1998, p. iv, 173 p. : fig., photogr.

P. Heyns, «Perspective on water affairs». Namibia, Department of Water Affairs, Investigations and Research, Windhoek, Namibia, p. 63 p.: 5 fig., 5 maps, 27 tab., 1991.

P. Heyns, «Factors affecting the cost of small water supply schemes in Namibia», Water supply : the review journal of the International Water Supply Association, pp. p. S10.13-S10.16: fig., tab., 1988.