000 00222 a2200097 4500
001 28246
100 _aRainville, E D
245 _aElementary differential equations
260 _a
_bMacmillan
_c1969
090 _c18862
_d18862
942 _aNUST-CAE
_cM
_c9849
999 _c263319
_d263319