000 00271nam a22001217a 4500
008 170816b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a51
100 _a36
101 _aMAT
245 _aELEMENTARY DIFFERENTIAL EQUATIONS
_cBOYCE,W.E
942 _2udc
_cBK
999 _c23717
_d23717