000 00363nam a2200157Ia 4500
008 180820s9999 xx 000 0 und d
050 _aC 330 R838p 1983
100 _aRuffin, Roy, J.
245 0 _aPrinciples of economics
260 _aIllinois
260 _bScott Foresman and Co.
260 _c1983
300 _a798
650 _aEconomics
942 _cBK
999 _c61995
_d61995