000 00286nam a2200121Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a330 GRA;T
100 _aGraaff, Jdeve
245 0 _aTheoretical Welfare Economics
260 _aCambridge
_c1975
942 _cGB
999 _c15148
_d15148