000 00311nam a2200133Ia 4500
005 20260205040208.0
008 260111s9999||||xx |||||||||||||| ||und||
082 _a517.38 C761D
100 _aCONKWRIGHT N B
245 0 _aDIFFERENTIAL EQUATION
260 _aN.Y.
_bMACMILLAN
_c1950
300 _a236
942 _cBK
999 _c1653
_d1653