Glasersfeld Ernst Von Ed. <br/><br/>
Radical constructivism in mathematics education 

 - Dordrecht, Netherlands  Kluwer Academic Publishers  1991 
 - xx, 248p. 
 - Mathematics Education Library, Vol. 7 .
<br/><br/><label>ISBN: </label>0-8153-4157-1 
<br/><br/><label>Source: </label>Reference