00267nam a2200097Ia 4500008004100000082001900041100002300060245002500083260005100108300001000159260129b        |||||||| |||| 00| 0 eng d  a338.9bM214.TP  aMahalanobis, P. C.  aTalks on planningb/  aCalcutta:bIndian Statistical Institute,c1961  a159p.