00294nas a22001217i 450000500170000000800410001702200140005804000140007224500300008626000280011665500130014431000150015720150127131741.0010105s2001    sp     gr     000 0 spa c  a0176-1714  aSIISbspa10aSOCIAL CHOICE AND WELFARE  a[s.l.]bSPRINGER-VERLAG 4aRevistas  aTRIMESTRAL