00415nam a22001577a 450000100060000000300100000600500170001604000140003300800410004724500410008825000060012926000430013530000110017865000360018965000320022522751MX-SIABUC20260702205521.0  aMX-SIABUC050515s1962    us x   j            eng d0 aCopyright protection in the americas4 a34 aWashington, D.C. :bPan American Union4 a175 p.  a1.DERECHOS DE AUTORz-AMÉRICA  a2.DERECHO CIVILz-AMÉRICA