Sistemas de numeracion para los numeros enteros 3 / 
National Council of Teachers of Mathematics ; tr. Federico Galvan Anaya 
 - 43 páginas :  ilustraciones 
<br/><br/> Traduccion de: Topics in mathematics for elementary school teachers brooklet number 3 : numeration systems for the whole numbers 
<br/><br/><label>ISBN: </label>9682400937 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aritmética--Fundamentos
<br/><br/><label>LC Class. No.: </label>QA248.3  / T6618