Piaget Jean <br/><br/>
Epistemology and psychology  of functions. 

 - Holland  D Reidel Publishing       1977 
 - xiv,205p.  cm. 
 - Synthese library. .
<br/><br/><label>Standard No.: </label>46644 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R2, L7