000 00328nam a2200133Ia 4500
005 20240713151504.0
008 240712s9999 xx 000 0 und d
041 _aeng
082 _a510.24658
_balo.vya.
100 _aGupta, aalok
245 _aVyavsayik ganit avem sankhyaki
260 _aAgara
_b S.B.P.D.
_c2019
300 _aVP
999 _c35444
_d35444