000 00308nam a2200145Ia 4500
008 230523s9999 xx 000 0 und d
100 _aKanti Swarup
245 0 _aOperations Research. Ed.20
250 _a3
260 _aDelhi
260 _bSultan Chand
260 _c2022
300 _a1156
942 _cTB
999 _c2098
_d2098