000 00298nam a2200133Ia 4500
100 _aKells/Lyman M
942 _cBK
654 _aelementary
245 _aElementary differential equations
260 _bMcGraw Hill
_aAuckland
_c1981
082 _a515.35
_bKEL
300 _a430
546 _aENGLISH
999 _c19394
_d19394