000			00334nam a2200133Ia 4500
008			100324s9999 xx 000 0 und d
100			_aBoyd H.W
245			_aMarketing research
260			_c0 _bIrwin Inc. _aChicago
366			_b0
541			_g4134 dt 20.5.91
650			_aMarketing
942			_cBK
999			_c73373 _d73373