000 00236nam a2200097Ia 4500
008 230915s9999 xx 000 0 und d
050 _aHB171.5.B55 1991
100 _aHENRY F. BILLINGS
245 0 _aINTRODUCTION TO ECONOMICS
942 _cBK
999 _c73105
_d73105