Richards , Jack C. <br/><br/>
New interchange : English for international communication. [Student┤s book 1 A] / 
Jack C. Richards 
 - 17a. ed. 
 - New York :  Cambridge University Press, 
 - 100 p. ;  27 cm. 
<br/><br/><label>ISBN: </label>0-521-62880 6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INGLES---ENSEÑANZA