000 00555nam a2200169Ia 4500
020 _a006041913X
082 _a515.352
_bETI
100 _aEtgen, Garret J.
_9201360
245 _aAn introduction to ordinary differential equations
_b: with difference equations, numerical methods, and applications
_cGarret J. Etgen, William L.Morris
260 _aNew York:
_bHarper and Row,
_c1977.
300 _bvii, 517p.
500 _aHB
546 _aEng
650 _aDifferential equations
_9201361
700 _aMorris, William L. (jt.auth)
_9201362
942 _cBK
999 _c20199
_d20199