009010000a22002530004500 PH-MaWHO 20241108112306.0 Brikke Francois. 652685 World Health Organization. Community Water Supply and Sanitation Unit. 654477 Management of operation and maintenance in rural drinking water supply and sanitation. WHO/CWS/92.16.--Unpublished Geneva : World Health Organization, 1993. 1v. WHO Documents File eng Water_Supply_and_Sanitation Drinking water 621274 Water supply 360161 Sanitation Education 642443 Teaching materials 332571 IRC International Water and Sanitation Centre. 652688 Water Supply and Sanitation Collaborative Council. 654659 DOC 6811 6811 0 0 0 0 WPRO WPRO 2021-05-23 0 WHO Documents File 06811 2024-01-24 00:00:00 2021-05-23 DOC