000 00421nam a2200157Ia 4500
008 190516s9999 xx 000 0 und d
028 _bSelect
100 _aSteen, Frederick H.
_992160
245 0 _aDiffrencial Equations
260 _bBlaisdell Publishing Company
_c1955
_aNew York
300 _a267
600 _tMathematics
_9112537
650 _aMathematics
_9112537
942 _cBK
999 _c101620
_d101620