00449nam a2200145Ia 4500008004100000082001500041100001500056245005800071250000900129260004300138300000800181942000700189952009000196999001700286190710s9999    xx            000 0 und d  a517.6 g959  aGupta, P P 0aCalculus of finite differences and numerical analysis  a21st  aMeerutbKrishna Prakashan Mandirc1995  a568  cBK  00104070aRIEBPLbRIEBPLd2019-07-10l0o517.6 g959p51277r2019-07-10 00:00:00yBK  c20224d20224