000 00306nam a2200109Ia 4500
008 230125s9999 xx 000 0 und d
100 _aDR. M D RAISINGHANIA
_917069
245 0 _aORDINARY & PARTIAL DIFFERENTIAL EQUATION 19EDI
260 _bS CHAND & COMPANY NEWDELHI
_c2017
300 _aM-37
942 _cBK
999 _c114676
_d114676