Hvidsten, Michael. <br/><br/>
Geometry with geometry explorer / 
Michael Hvidsten. 
 - [S.l.] :  McGraw-Hill Science/Engineering/Math,  2005 
 - 480 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0072948639 9780072948639 
<br/><br/><label>Dewey Class. No.: </label>516