000			00335nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
020			_a9.78E+12
082			_a1
082			_b64 H78
100			_aHENRY HORENSTEIN
245		4	_aThe Business Computer Gu
260			_aLondon
260			_bS.M.J.
260			_c1983
300			_a192
999			_c21744 _d21744