00302nam a2200109Ia 450000500170000000800410001708200140005810000190007224500530009126000400014430000080018420260224041039.0260224s9999||||xx |||||||||||||| ||und||  a519.5 CHA  aChaudhuri, A.  0aUnified theory and strategies of survey sampling  aNew York:   Sole Distributorsc1988  a413