Methods for gathering socio cultural data for water supply -and senitation projects / by Mayling Simpson Hébert.
Simpson Hébert, Mayling.
Methods for gathering socio cultural data for water supply -and senitation projects / by Mayling Simpson Hébert. - Washington. : World Bank. - 31 p. - Technical note; no. 1 .
Methods for gathering socio cultural data for water supply -and senitation projects / by Mayling Simpson Hébert. - Washington. : World Bank. - 31 p. - Technical note; no. 1 .