000 00288nam a2200121Ia 4500
008 190710s9999 xx 000 0 und d
082 _a515.35 G46
100 _aGupta, R.K
245 0 _aDifferential equations
260 _aMeerut
_bKrishna Prakashan
_c2005
300 _a580
942 _cBK
999 _c25098
_d25098