00416nam a22001337a 450000100060000000300100000600500170001604000140003300800410004724500880008826000230017630000100019965000730020926106MX-SIABUC20260702205913.0  aMX-SIABUC050514s1961    -usx   j            eng d0 aThe copyright office of the United States of America : what it is, and what it does4 a(s. l.) :b(s. n.)4 a29 p.  a1.DERECHO DE AUTORz-ESTADOS UNIDOS 2.DERECHO CIVILz-ESTADOS UNIDOS