000 00309nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a65.012.122
_bLIT
245 0 _aOperational research for managers
260 _aOxford
_bPhilip Allan
_c1977
650 _aOperational research
700 _aS C
942 _cBK
999 _c28017
_d28017