World Bank -Washington, DC, US y UNDP -New York, NY, US,
«All-Africa seminar on low-cost rural and urban-fringe water supply : Abidjan, October 13-18, 1986». UNDP (United Nations Development Programme), Abidjan, Ivory Coast, p. 28 papers (ca. 450 p.), 1986.
World Bank -Washington, DC, US, UNDP -New York, NY, US, y Harpenden, G. B. Consumers',
«Handpump laboratory test results : GSW, Monarch, Monolift, Moyno, Pek, Tara, and Volanta pumps», vol. no. 2. World Bank, Washington, DC, USA, p. v, 111p.: fig., tab., 1986.