00647nam a22001937a 450000100060000000300100000600500170001604000140003300800410004709000180008824500880010626000230019430000100021765000730022759900220030094200060032299900170032895201080034526106MX-SIABUC20260702205913.0  aMX-SIABUC050514s1961    -usx   j            eng d  aK780.112 C6680 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  a20110617 10:59:20  c1  c26106d26106  001030000004070a1b1c1d2011-06-17l0oK780.112 C668p35340r2026-07-02 20:59:13t1w2026-07-02y1