"Woda dystrybucja aparatura i sprzęt." . . "Woda zaopatrzenie Kraje rozwijające się." . . . . "Sewage disposal." . . "World Water Symposium (4th : 2006 : Mexico City)" . . . "Woda pitna aspekt zdrowotny Kraje rozwijające się." . . "Sanitation" . . "Sanitation." . "World Water Symposium (4 : 2006 : Mexico City)" . . . "Water resources" . . "Developing countries" . . "Developing Countries." . "Netherlands Water Partnership" . . . "Zarządzanie zasobami wodnymi Kraje rozwijające się." . . "WASTE (Gouda)" . . "Developing countries." . . . . . . . . . . . . . . . . . "Smart sanitation solutions : examples of innovative, low-cost technologies for toilets, collection, transportation, treatment and use of sanitation products" . . . . "Smart sanitation solutions : examples of innovative, low-cost technologies for toilets, collection, transportation, treatment and use of sanitation products"@en . . . . . . . . . . "Conference papers and proceedings" . "Conference papers and proceedings"@en . . . . . . . "World Water Symposium (2006 : México (D.F.))" . . . "Toilets." . .