The New Book of Knowledge: P 

 - U. S.  Scholastic Library Publishing, Inc.  2006 
 - 604 pages ;  col. ill. ;  26 cm. 
<br/><br/><label>ISBN: </label>0-7172-0540-1 
<br/><br/><label>Dewey Class. No.: </label>R/031.083/N42/V15/2006