00365nam a2200097Ia 4500008004100000082002300041100007300064245008800137260003200225300001000257260720b        |||||||| |||| 00| 0 eng d  a519.50184bIn39.TA  aIndian Statistical Institute. Research and Training School, Calcutta  aTechnical aspects of designs national sample survey; a collection of five papersb/  aCalcutta:bThe Auth.,c1967  a226p.