00514cam a22001097a 4500008004000000082001400040245017000054260003500224300000900259440004000268700009600308180718b1979   xxu||||| |||| 00| 0 eng d  aB19 Un3im  aImproving social statistics in developing countries: conceptual framework and methodscby Statistical Office, Department of International Economic and Social Affairs  aNew YorkbUnited Nationsc1979  a95p.  aStudies in Methods, Series F No. 25  aUnited Nations. Department of International Economic and Social Affairs. Statistical Office