Elffers, Joost. <br/><br/>
Tangram: The Ancient Chinese Shapes Game /  

 - 1st ed /  
 - England :   Penguin Books Ltd. ,   1925 
 - p.200 :  
<br/><br/><label>ISBN: </label>0-14-00.4181-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Games
<br/><br/><label>Dewey Class. No.: </label>MY42`C  / L3