World Bank -Washington, DC, US and 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.
UNDP -New York, NY, US and Geneva, C. H. I. L. O. -,
Gabions, vol. no. 3. Geneva, Switzerland: International Labour Office (ILO), 1986, p. 54 p.: fig.
World Bank -Washington, DC, US, UNDP -New York, NY, US, and 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.
UNDP -New York, NY, US and Geneva, C. H. I. L. O. -,
“Participation by women in special public works programmes”, in
Eighth joint meeting for support to special public works programmes (Geneva, 23-2 April 1986) : item 4 of the agenda, 1986, pp. P. 13-25 + annex.