000 00334nam a2200145Ia 4500
008 200131s9999 xx 000 0 und d
100 1 _aAnonimo
245 0 _aMicroeconomia
250 _a7ma. ed
264 _aMadrid,
_c 2009
336 _atxt
337 _an
338 _anc
999 _c184457
_d184457
942 0 0 _00