Polar bears. 
 World windows  polar bears 

 - Boston :  Heinle,  c2012. 
 - 19 p. :  ill. , 1 map ;  25 cm. 
 - World wondows readers ;  level 2 .
 - World windows readers ;  level 2. .
<br/><br/> What do you know about polar bears? 
<br/><br/><label>ISBN: </label>9781133492702 1133492703 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers.<br/>Polar bear--Juvenile literature.<br/>Snow (Polar bear)--Juvenile literature.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Artic regions--Juvenile literature.