00270nam a2200109 a 450000500170000002000150001708200150003210000160004724500460006326000300010930000210013920251203091224.0  a8120705688  a519.5bGRE  aGrewal,P.S.  aNumerical methods of statistical analysis  aNew DelhibSterlingc1987  a1029p.c24cm. HB