000 00285nam a22000857a 4500
008 220506s1990 us ||||| |||| 00| 0 eng d
100 _aHirschey, Mark
_9234986
245 _aManagerial economics : study guide /
_cMark Hirschey; James L. Pappas.
264 _aChicago :
_bDryden Press,
_c1990.
999 _c592086
_d592084