00359nam a2200145Ia 4500003000500000008004100005020000900046040000900055041001200064082002300076100001700099245007200116260000900188650001600197NDCL180829s9999||||ii |||||||||||||| ||eng||  a9129  aNDCL  aEnglish  a517.38 AT216th ed  aAmarnath, T. 3aAn elementary course in partial differential equationscT. Amarnath  c2004  aMathematics