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Filters: Keyword is appropriate technology sanitation project  [Clear All Filters]
1987
D. C. De Villiers, “Evaluation of sites for on-site sanitation systems”, Civil engineer in South Africa, p. p. 313, 315, 1987.
1980
G. T. Agua del P. Chimaltenango, “Sector analysis and program planning document for environmental sanitation activities in highland Guatemala : final report”. USAID/Guatemala, Guatemala, Guatemala, p. 181 p. : tab., 2 ann., 1980.
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