000 00322nam a2200133Ia 4500
008 241226s9999 xx 000 0 und d
020 _a0
082 _a519.5
_bSHA
100 _aSharma J K
245 0 _aOperation research
260 _aNew Delhi :
_bMacmilan,
_c2021.
350 _a298
650 _aInformation Technology
999 _c167132
_d167132