00785nam a2200193Ia 4500082002300000100010500023245008600128260003500214300001500249440007300264500000500337653000600342700000500348952010400353964001700457965009600474921000800570999001300578  a304.60723bW926.MD  a"Workshop on methodology of demographic sample surveys", Copenhagen, Denmark, 24 Sept.- 3 Oct., 1969  aMethodology of demographic sample surveys; report of the interregional workshopb  aNew YorkbUnited Nationsc1971  aiii, 311p.  aUpNpEconomic and Social affairsxDepttpof- Statistical papersx51  a  a   a  00104070aISIbISId1998-05-26l0o304.60723 W926.MDpDP5448r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a(United Nations economic and social affairs, dept. of-. statistical papers series M; no.51)  a191  c191d191