00413nam a22001457a 450000100060000000300100000600500170001604000140003300800410004711000240008824500520011226000360016430000100020061000570021012983MX-SIABUC20260702204430.0  aMX-SIABUC050515s1962    -usx   j            eng d 2aColumbia University0 aGraduate studies of the school of law 1962-19634 aNew York :bColumbia University4 a37 p. 2a1.UNIVERSIDAD DE COLUMBIAa1.UNIVERSIDAD DE COLUMBIA