Richards, Jack C.,  1943- <br/><br/>
Four corners /  Jack C. Richards; Kristin Sherma.- 

 - New York - USA:  Cambridge University,  2012. 
 - 1 v. :  il. 
<br/><br/><label>ISBN: </label>978850521126465 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Língua inglesa--Ensino
<br/><br/><label>Dewey Class. No.: </label>428.07  / R516f