00293    a2200109   4500001000700000020000600007040001100013100002500024240006500049245006000114362000900174166639  a   cMagnum  aLitwin, Edith (Org.)10aTecnologia educacional: politica, historias e propostaslpor10aTecnologia educacional: politica, historias e propostas0 a1899