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Filters: Keyword is ecological sanitation and Author is Sayre, J.C.Z.  [Clear All Filters]
Sayre, E.V. y Sayre, J.C.Z., «With our own hands : experiences in promoting ecological sanitation and food security in Mindanao». Water, Agro-forestry, Nutrition and Development Foundation, WAND Foundation, Philippines, p. 69 p.; 8 refs.; 29 photographs; 10 fig., 2010.