Hyde, D. M. Georgie <br/><br/>
Piaget and conceptual development / 
with a cross-cultural study of number and quantity by D. M. G. Hyde 
 - Rinehart and Winston, London :  Holt,  1970 
 - xiv, 246 p. ;  23 cm. 
<br/><br/>Bibliography: p. 222-231. 
<br/><br/><label>ISBN: </label>0039100731 
<br/><br/><label>LCCN: </label>73-851458 
<br/><br/><label>Subjects--Personal Names: </label><br/>Piaget, Jean, 1896 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cognition in children