000 00387nam a2200145Ia 4500
008 100324s9999 xx 000 0 und d
100 _aGould J.P; Lazear E.P
245 _aMicroeconomics theory
250 _a6
260 _c1993
_bRichard D Irwin
_aIllinois
366 _b1993
541 _gA97092, 1/7/96
650 _aECONOMICS
942 _cBK
999 _c78529
_d78529