00301nam a22001097a 4500008004100000041001400041082001500055100002200070245001900092260005500111300002500166260321b        |||||||| |||| 00| 0 eng d  aEspañol  aR574 D228   aMario Dary Rivera  aBiología III  aGuatemalabEditorial Universitaria Guatemalac1976  a376p. :bIl. ;c27cm