20191201d2005    u||y0frey5050    ba <br/><br/>
 - OM / SF / SF .
 = Paris 
<br/><br/><label>LCCN: </label>2 7492 0293 0 
<br/><br/><label>Subjects--Personal Names: </label><br/>PIAGET (JEAN)
<br/><br/><label>Subjects--Corporate Names: </label><br/>EPISTEMOLOGIE<br/>PSYCHOLOGIE<br/>SCIENCE SOCIALE