Biblio

W. R. S. Critchley, Reij, C. P., and Turner, S. D., “Soil and water conservation in sub-Saharan Africa : towards sustainable production by the rural poor”. International Fund for Agricultural Development, Rome, Italy, p. 110 p.: 24 fig., 25 boxes, 1992.

S. Kone, “Malian experience in rain water cistern systems”, in Rainwater catchment for future generations : proceedings of the 5th International Conference on Rain Water Cistern Systems, Keelung, Taiwan, 4-10 August 1991, 1991, pp. P. 598-606 : 3 fig.

S. Rebers, “Traditional knowledge concerning waterquality and water-management in rural areas of India”. Agricultural University Wageningen, Dept. of Water Purification, Wageningen, The Netherlands, p. vi, 54 p.: fig., 1990.