Picard, Nicole <br/><br/>
Des ensembles a la decouverte du nombre / 
Nicole Picard. 
 - Paris:   OCDL,   1970.  
 - 73 p. :  ill. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)
<br/><br/><label>Dewey Class. No.: </label>372.7