Seydel, Ken. <br/><br/>
Geometry :  an exercise in reasoning / 
Ken Seydel. 
 - Philadelphia :  W. B. Saunders,  1980. 
 - xiii, 416 p. ;  27 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0721680704 
<br/><br/><label>LCCN: </label>78-064723 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry.