Dorling Kindersley: Illustrated Famly Encyclopedia 

 - vol. 11 O-P 
 - London  Dorling Kindersley  2004 
 - 684 pages:  illustrations;   28 cm. 
<br/><br/><label>ISBN: </label>9771744221006 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ocean wildlife-- Juvenile literature <br/>Portugal -- Juvenile literature 
<br/><br/><label>LC Class. No.: </label>REF AG 5 .D73 2004