000 00301nam a22001217a 4500
999 _c502496
_d502496
003 OSt
008 190829b xxu||||| |||| 00| 0 eng d
100 _aDheonchak, Poonam K
245 _aPartial Differential equation sem 3rd
260 _aDelhi
_bJeevansons
_c2020
300 _a13.26
942 _cBK
_018