00310nam a22001337a 450000500170000004100060001710000190002324500150004225000110005726400170006830000170008552000580010265000160016020260210071212.0  a1  aLANGA, Heitor.  aMatematica  aPlural  aMaputoc2010  a112b1c30cm  aManual do Professor de ensino de Matematica 9 Classe.  aMatematica.