000 00352nam a2200133Ia 4500
008 100324s9999 xx 000 0 und d
100 _aBeilby, M.H
245 _aEconomics and operational research
260 _c1975
_bUS Jones Irwin
366 _b1975
650 _aMANAGEMENT
942 _cBK
999 _c1254
_d1254