000 00331nam a2200145Ia 4500
008 170101s1971 xx 000 0 und d
082 _a330.1 W28P
100 _aWELFLING, Weldon
245 0 _aPrinciples of economics
260 _bN.Y.
_c1971
300 _a488p
650 _aECONOMICS
653 _aECONOMICS
942 _2ddc
_cB
999 _c45072
_d45072