000 00288nam a2200121Ia 4500
008 151205s9999||||xx |||||||||||||| ||und||
020 _c0
100 _aLIPSEY,RICHARD G.
245 _aAN INTRODUCTION TO POSITIVE ECONOMICS
260 _c1975
_bELBS
650 _aECONOMICS
942 _cBK
999 _c204904
_d204904