Biblio

R. McGowan and Hodgkin, J., “Water pump fieldtests in Botswana”. Associates in Rural Development, Burlington, VT, USA, p. ii, 96 p.: fig., 1986.

W. K. Kennedy and Rogers, A., Human and animal-powered water lifting devices. London, UK: IT Publications, 1985, p. ii, 111 p.: fig., tab.

S. Batliwala, “Rural energy scarcity and nutrition : a new perspective”, Economic and political weekly, pp. p. 329-333, 1982.