000 00287nam a2200097Ia 4500
008 120224s9999 xx 000 0 und d
082 _a338.001
_bHAY
100 _aHay, Donald
245 _aIndustrial economics : theory and evidence
260 _bOxford University Press
_aOxford
_c1979
999 _c134469
_d134469