000 00000nam a2200000 a 4500
005 20251202164243.0
020 _a0070845409
082 _a658.4034
_bWIL
100 _aWilkes, F.M
245 _aElements of operational research
260 _aNew Delhi
_bMcGraw-Hill
_c1980
300 _axv,343p.
_b21 cm.
_cHB
630 _aOperational Research
964 _bEng
_c
_d
_e
_f
_g_
997 _a7585 LIBSS C
999 _c5036
_d5036