Pook, L. P <br/><br/>
Flexagons inside out 
Les Pook 
 - 1st ed 
 - Cambridge  Cambridge University Press  2003 
 - xi, 170 p. : ill. ; 25 cm 
<br/><br/> Includes bibliographical references (p. 164-166) and indexes 
<br/><br/><label>ISBN: </label>9780521819701 
<br/><br/><label>ISSN: </label>2003273864 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical recreations<br/>Polyhedra - Models
<br/><br/><label>Dewey Class. No.: </label>516.156 POO