008970000a22002290004500 PH-MaWHO 20241108112337.0 WHO Scientific Group on Techniques for the Collection and Reporting of Data on Community Water Supply (1971 : Geneva). 657069 Techniques for the collection and reporting of data on community water supply : report of a WHO scientific group [meeting held in Geneva from 24 to 30 August 1971]. 92-4-120490-7 Geneva : World Health Organization, 1972. (WHO technical report series ; 490) 24p. WHO/HQ File eng Water supply 360161 Data collection 124817 Information services 201351 World Health Organization 657070 http://whqlibdoc.who.int/trs/WHO_TRS_490.pdf MONO 8097 8097 0 0 0 0 WPRO WPRO 2021-05-23 0 WHO/HQ File 08097 2024-01-24 00:00:00 2021-05-23 MONO