Radical constructivism in mathematics education ; Ernst von Glasersfeld. 

 - Dordrecht:   Kluwer Academic,   1991.  
 - 248 p. :  ill. ;  25 cm. 
 -  7 .
<br/><br/><label>ISBN: </label>0792312570 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching
<br/><br/><label>Dewey Class. No.: </label>510.71