RICHARDS, Jack C. <br/><br/>
Interchange :   english for international communication. 1 Workbook 

 - 1a ed. 
 - New York :   Cambridge University Press,   1990. 
 - IX, 60 p. ;   27 x 21 cm. 
<br/><br/><label>ISBN: </label>0-521-35990-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GRAMÁTICA INGLESA