J. N. Kardile,
«Development of simple and economic filtration methods for rural water supplies». Nagpur University, Nagpur, India, p. iv, 228 p.: techn. drwngs, fig., photogr., tab., 1978.
J. Cuthbert,
«Guidelines for comparative testing of products : hand/foot pumps, part I and II», vol. Z.9977. Consumers' Association Harpenden Rise Laboratory, London, UK, p. Various paging : fig., 1978.
J. Copperman,
«The impact of village water supplies in Botswana : a study of four villages : Mmathethe, Modipane, Sojwe, Tsamaya». SIDA, Swedish International Development Cooperation Agency, Gaborone, Botswana, p. 90 p.: map, photogr., 1978.
D. Miller,
«A self-help paradigm for rural water systems», vol. no. 9. OECD, Development Centre, Paris, France, p. iv, 59 p.: tab., 1978.
A. Cronin, Curtis, D., Lamb, D., Southall, H., Cross, P., Feachem, R., Burns, E., Khan, M. K., y Cairncross, S.,
Water, health and development : an interdisciplinary evaluation. London, UK: Tri-Med, 1978, p. xiii, 267 p., [6] p. pl.: fig., tab.