000 00379nam a2200145Ia 4500
008 210901s1992 xx 000 0 eng d
082 _a515.35 BOY
100 _aBoyce, William.E.
245 0 _aElementary differtial equations and Boundary value problem
250 _a5th
260 _aNew York
_bJohn Wiley
_c1992
300 _a680
650 _aMathematics
942 _2ddc
_cBK
999 _c20017
_d20017