00253nam a2200097Ia 4500008004100000082001700041100001400058245004300072260002900115300001100144240817s9999    xx            000 0 und d  a519.72 G95,L  aGupta,S.k 0aLinear programming and network models.  c1985a New Delhib E.W.P  a232 p.