Hughes, Martin. <br/><br/>
Los niños y los números  las dificultades en el aprendizaje de las matemáticas 
Martin Hughes ; translated by Juan-Andrés Iglesias. 
 - Barcelona  Editorial Planeta  1987. 
 - 240 p.  ill. 
 - Nueva Paideia .
<br/><br/> Translation of: Children and number: difficulties in learning mathematics.  Includes index. 
<br/><br/>Bibliography: p. [229]-233. 
<br/><br/><label>ISBN: </label>8432080225 
<br/><br/><label>LCCN: </label>buc92000977  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number concept in children.<br/>Mathematical ability--Study and teaching.
<br/><br/><label>LC Class. No.: </label>BF723.N8  / H8418 1987 
<br/><br/><label>Dewey Class. No.: </label>372.72  / H894c  / E