000 00294 a2200121 4500
080 _a65.012.1/2
_bS 64 O
245 1 _aOperations research
_cby J. Singh
260 _aEngland
_bPenguin Books
_c1968
650 _aOperations Research
100 1 _aSingh, J.
_d
300 _a253 p.
901 _a181520
999 _c87983
_d87983