1990
D. Yohalem,
« Programming guide for guinea worm eradication », vol. no. 329. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. viii, 100 p., 1990.
Z. Ministry o ZW,
« Project management handbook for water supply and sanitation projects ». Zimbabwe, Department of Environmental Health Services, Harare, Zimbabwe, p. 136 p.: fig., 1990.
P. Roark et Yacoob, M.,
« Tech pack : steps for implementing rural water supply and sanitation projects », vol. no. 62. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. v, 111 p.: fig., 1990.
R. Franceys,
« Technical brief no. 23 : A guide to sanitation selection »,
Waterlines, an international journal of water, sanitation and waste, vol. no. 23, p. p. 15-18: fig., 1990.
1989
USAID -Washington, DC, US,
« AID evaluation handbook », vol. no. 7. USAID, Washington, DC, USA, p. v, 64 p.: tab., 1989.
D. E. G. T. Z. - Eschborn,
« Community participation and hygiene education in water supply and sanitation (CPHE) », vol. no. 1 , 2 , 3 , 4 , 5. Deutsche Gesellschaft fur Technische Zusammenarbeit (GTZ), Eschborn, Germany, p. various paging: fig., photogr., tab., 1989.
T. S. A. Mbwette et Wegelin, M.,
« Design, operation and maintenance considerations of horizontal flow roughing filters »,
Waterlines, an international journal of water, sanitation and waste, p. p. 27-29: fig., photogr., tab., 1989.
M. Zimmerman, Newton, N., Frumin, L., et Wittet, S.,
« Developing health and family planning print materials for low-literate audiences : a guide ». Program for Appropriate Technology in Health, Washington, DC, USA, p. 64 p.: 31 fig., 1989.
J. Lorentzen et Hansen, E.,
« Diagnostic assessments of operations and maintenance problems : analysis and synthesis report ». United Nations Centre for Human Settlements (UNCHS-Habitat) Urban Management Group, Nairobi, Kenya, p. 156 p.: tab., 1989.
E. G. Social Res Cairo,
« A guide for trainers for promoting hygienic practices and sanitation ». American University in Cairo, Social Research Centre, Cairo, Egypt, p. 19 p. : ill., 1989.
T. Z. H. E. S. A. W. A. - Mwanza,
« Guideline drilling ». Health through Sanitation and Water (HESAWA), Mwanza, Tanzania, p. 5 p., 1989.
M. H. Birley,
« Guidelines for forecasting the vector-borne disease implications of water resources development », vol. no. 2. Joint WHO/FAO/UNEP Panel of Experts on Environmental Management for Vector Contr, Geneva, Switzerland, p. 124 p.: fig., flowchart, tab., 1989.
A. Department AU et Australian Water Resources Council -Canberra, ACT, AU,
Guidelines for low cost water supplies for small communities, vol. no. 17. Canberra, ACT, Australia: Australian Government Publishing Service, 1989, p. xvi, 142 p.: fig., tab.
A. Wyatt,
« Guidelines for maintenance management in water and sanitation utilities in developing countries », vol. no. 63. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. viii, 207 p.: fig., 1989.
Z. Department ZM,
« Guidelines for reporting ». Zambia, Department of Water Affairs, Lusaka, Zambia, p. 14, xii p., 1989.
World Bank -Washington, DC, US et UNDP -New York, NY, US,
« Guidelines for the development of water and sanitation sector strategy and action plans for low-income groups ». World Bank, Washington, DC, USA, p. 34 p. + 59 p. annexes: fig., 1989.