000 00260nam a2200109Ia 4500
100 _aPhillips HB
245 _aDifferential Equations
250 _a3rd
260 _c1956
_aNew York;
_aLondon
_bJohn Wiley & Sons;
_bChapman & Hall
300 _aviii+149
942 _cBK
999 _c1347
_d1347