000 00256nam a22001217a 4500
999 _c502591
_d502591
003 OSt
008 200623b xxu||||| |||| 00| 0 eng d
100 _aThakur,A.k
245 _aGeneral English
260 _bLucent
_c2019
300 _a554
942 _cBK
_06