00289    a2200097   4500082001700000100002400017245005500041260003800096300002100134650003600155  a515.352bCOD  aCoddington, Earl A.  aAn introduction to ordinary differential equations  aNew Delhib81203.361Xc1961g1961  axi, 292p.c22cm.  aOrdinary differential equations