Perspective on the teaching of geometry for the 21st century :  an ICMI study / 
edited by Carmelo Mammana and Vinicio Villani. 
 - Dordrecht, The Netherlands :  Kluwer Academic Publishers,  c1998. 
 - viii, 353 p. : ill. ; 24 cm. 
<br/><br/> Bibliography : p. 329-335. 
<br/><br/><label>ISBN: </label>0792349911 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry.