000 00320nam a22001337a 4500
003 OSt
008 231225b |||||||| |||| 00| 0 eng d
082 _a517.38
_bK26E
100 _aKells, L. M.
245 _aElementary differential equations
260 _aMcgraw Hill Kogakusha
_c1965
300 _a430
942 _2ddc
_cBK
999 _c35030
_d35030