00457nam a22001697a 450000100060000000300100000600500170001604000140003300800410004702000180008810000170010624500580012326000330018130000180021465000290023270000260026133085MX-SIABUC20260702210726.0  aMX-SIABUC050603s1981    -usa   j            eng d  a0-06-090880-7  aGies, Joseph  aLife in a medieval city /cby Joseph and Frances Gies  aNew York :bHarper Perennial  a274 p. : bil.  a1. EDAD MEDIAx-HISTORIA  aGies, Frances, Coaut.