Biblio

J. P. Fowler, «The design and construction of small earth dams», Appropriate technology, pp. p. 4-7 : techn.drwngs, 1977.

NSF International -Ann Arbor, MI, US, National Sanitation Foundation, «Second National Conference on individual wastewater systems : November 5-7,1975». National Sanitation Foundation, Ann Arbor, MI, USA, p. 167 p.: tab., fig., 1976.

Z. M. Community Lusaka, «Guidelines for community participation and health and hyiene education for rural water supply and sanitation». Community Management and Monitoring Unit, Lusaka, Zambia, p. ca. 214 p. : drwngs, fig.

Z. M. U. N. I. C. E. F. - Lusaka, «Manual for construction of rain collector tanks using fibre glass molds». UNICEF, Lusaka, Zambia, p. 25 p. : 28 fig.