00269nam a2200121Ia 4500008004100000041000800041082002300049100001300072245003500085250001000120260000900130300000800139211209s1975    xx            000 0 und d  aeng  a530.15 N75 JAI/ARO  aJAIN K C  aNUMERICAL PROBLEMS IN PHYSICS   a5 ed.  c1975  a401