000 00293nam a2200121Ia 4500
008 220201s1970 xx 000 0 eng d
082 _a338.5
_bCOL
100 _aColberg,M.Reference .
245 0 _aBusiness Economics
260 _bReference ichard D.Irwin
_c1970
300 _a601
942 _2ddc
999 _c1720
_d1720