000 00274nam a2200121Ia 4500
008 170912s9999 xx 000 0 und d
082 _a HAR/O
100 _aHARRISON P
245 0 _aOPERATIONAL RESEARCH
260 _bMITCHELL BEAZLEY
_c1989
300 _a127
942 _cTB
999 _c31103
_d31103