00305nam a2200109Ia 4500008004100000020001300041040002900054050002400083100001600107245003900123260003300162230104s9999||||xx |||||||||||||| ||und||  a70109001  cChuka University Library  aHF 5351 bG655 1990  aGraf, david 0aBusiness in an information economy  aMc graw hillbNew yorkc1990