National Geographic :  footprint reading library : teacher's book : upper-intermediate : 1900 headwords : B2  
Rob Waring, series editor 
 - United States :  Heinle Cengage Learning,   c2009. 
 - x, 70 p. :  ill. ;  28 cm. 
 - Footprint reading library .
<br/><br/><label>ISBN: </label>9781424012817 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign speakers
<br/><br/><label>Dewey Class. No.: </label>428.6 NA TI