00251nam a2200109Ia 4500008004100000100001700041245002200058260002300080260000900103546001200112999001700124170619s9999    xx            000 0 und d  aGREWAL- B.S. 0aNUMERICAL METHODS  bPEARSON EDU. DELHI  c2010  aENGLISH  c23113d23113