Matemática moderna para profesores de enseñanza elemental 
National Council of Teachers of Mathematics. 
 - Madrid  Santillana  1976. 
 - 261 p.  illus. 
 - Aula XXI  5 .
<br/><br/> Translation of : Mathematics for elementary school teachers. 
<br/><br/><label>ISBN: </label>8429413316 
<br/><br/><label>LCCN: </label>buc91000161   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Foundations.<br/>Mathematics--Study and teaching (Elementary)
<br/><br/><label>LC Class. No.: </label>QA248.3  / .N2918 
<br/><br/><label>Dewey Class. No.: </label>372.7  / N278m  / E