00356nam a2200133Ia 4500020001800000082001800018100002200036245006600058250001300124260002800137300000900165650002700174700002100201  a9781498736053  a515.352 WIR/C  aWirkus Stephen, A 0aCourse In Differential Equations With Boundary Value Problems  a2 ND ED.  bCrc PressaLondonc2017  a767p  aDifferential Equations  aSwift Randall, J