000 00345nam a2200133Ia 4500
008 100324s9999 xx 000 0 und d
100 _aSachs, I
245 _aMain trends in economics
260 _c1970
_bGeorge Allen and Unwin
_aLondon
366 _b1970
650 _aECONOMICS
942 _cBK
999 _c66535
_d66535