00345pam a2200145a 44500008004100000020000900041041001200050082000900062100002800071245003300099250000600132260004400138300000800182650000900190230515b1993    xxu||||| |||| 00| 0 eng d  aNULL  aENGLISH  aN.D.  aNagrath I.J. / Gopal M.  aSystems Modelling & Analysis  a0  aNULLbTata McGraw Hill Publishingc1993  a647  aNULL