000 00357nam a2200145Ia 4500
020 _a0194424545
082 _b2963
_a330
100 _a"Lipsey, Richard G."
245 3 _aAn introduction to possitive economics
260 _b,Oxford Uni press
_auk
_c2011
300 _a918
944 _cTR
999 _c631533
_d631533