Barker M. Charles <br/><br/>
The "new" math : for teachers and parents of elementary school children / 
Charles M. Barker, Helen Curran, Mary Metcalf 
 - 5a ed. 
 - New York :  The new american library,  1965. 
 - 128 p. :  ìl. ;  18 cm. 
 - A signet book complete & unabridged .
<br/><br/>Incluye apèndice e ìndice 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Matematicas--Estudio y enseñanza
<br/><br/><label>LC Class. No.: </label>QA135.5  / B37 1965