Doff, Adrian. <br/><br/>
Language in use :  self-study workbook with answer key (intermediate) / 
Adrian Doff and Christopher Jones. 
 - New York :  Cambridge university press,  c1994 
 - 136 p. :  ill., tables. ;  28 cm. 
<br/><br/>Reference 
<br/><br/>
<br/><br/><label>ISBN: </label>0521435544 9780521435543 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language
<br/><br/><label>Dewey Class. No.: </label>425/DOL