000 00410nam a2200133Ia 4500
008 100324s9999 xx 000 0 und d
100 _aWorld Bank.
245 _aA simultaneous equation model of price and quality adjustment in world primary commodity markets
260 _c0
_bWorld Bank
_aWashington DC
366 _b0
650 _aMarketing
942 _cBK
999 _c68536
_d68536