00273nam a2200121Ia 4500100002800000250000600028654001400034245003600048260003200084082001500116300000800131546001200139  aChapra/S.C/ Canale/R.P   a2  anumerical  aNumerical methods for engineers  bMcGraw HillaNew Yorkc1989  a519.4bCHA  a812  aENGLISH