Osborne, Mary Pope. <br/><br/>
Polar bears and the Arctic / 
by Mary Pope Osborne and Natalie Pope Boyce ; illustrated by Sal Murdocca. 
 - New York :  Random House,  [2011], c2007. 
 - 119 p. :  ill. ;  20 cm. 
 - Magic tree house fact tracker ;  16 .
<br/><br/> "A nonfiction companion to magic tree house(r) #12: Polar bears past bedtime."  "A stepping stone book" 
<br/><br/>Includes bibliographical references (p. 108-112) and index. 
<br/><br/><label>ISBN: </label>9780375832222 (trade) 9780375932229 (lib bdg.) 
<br/><br/><label>LCCN: </label>2011010459 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Polar bear--Arctic regions--Juvenile literature.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Arctic regions--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>QL737.C27  / O83 2011 
<br/><br/><label>Dewey Class. No.: </label>599.786