000 00325nam a2200121Ia 4500
001 MPKV056547
008 120911s9999 xx 000 0 und d
082 _a330
245 _aEconomica Vol.41 no.161-164
_c;
246 _aEconomica Vol.41 no.161-164
260 _aLondon
_bLondon School of Economic
_c1974
650 _aEconomics
999 _c54541
_d54541