00349nam a2200145   450000100060000000300030000600500170000900800410002603500190006703500180008605000190010410000220012324500400014526000180018521810UR20220427165345.0061103|||||||||||||||||||||||||||||||| d  a(janium) 21799  a(janium)21798 4aQA11b.F7 19871 aAvalos, Ma. Luisa10aFred aprende las nuevas matematicas  bTrillasc1987