World Health organization International water and Sanitation centre Water Supply and Sanitation coolaborative Council. (2000). Operation and maintenance of rural water supply and sanitation systems: A training package for managers and planners. World Health Organization.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)World Health organization International water and Sanitation centre Water Supply and Sanitation coolaborative Council. Operation and Maintenance of Rural Water Supply and Sanitation Systems: A Training Package for Managers and Planners. Geneva: World Health Organization, 2000.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)World Health organization International water and Sanitation centre Water Supply and Sanitation coolaborative Council. Operation and Maintenance of Rural Water Supply and Sanitation Systems: A Training Package for Managers and Planners. World Health Organization, 2000.