Inhelder, Barbel. <br/><br/>
The early growth of logic in the child :  classification and seriation / 
by Barbel Inhelder and Jean Piaget ; tr. from the French by E.A. Lunzer and D. Papert. 
 - London :  Routledge & K. Paul,  [1964] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.<br/>Child study.