00298nam a2200109Ia 4500008004100000100002300041245006100064260002300125650001600148942000700164999001700171190216s9999||||xx |||||||||||||| ||und||  aRaisingh Ania. M.D 0aMathmatics- -ordinary And Partial Differential Equations  bS Chand & Coc2004  aMathematics  cBK  c31918d31918