Douglas,Nancy <br/><br/>
Reading explorer 3 /  Nancy Douglas . 

 - Boston :  Heinle Cengage Learning,  c2010. 
 - 192 p. :  ill. (some col.), col. maps ;  28 cm. +   1 CD-ROM (4 3/4 in.) 
<br/><br/> At head of cover: National Geographic. 
<br/><br/><label>ISBN: </label>9781424029389 
<br/><br/><label>LC Class. No.: </label>LB1050.45  / R4298 2010