Sinclair, Barbara. <br/><br/>
Activate your English. Pre-intermediate  
Barbara Sinclair. 
 - Cambridge :   Cambridge University Press,   1995 
 - 88 p. :   ill. ;   30 cm. 
<br/><br/><label>ISBN: </label>0521425689 ;9780521425681 ;0521425697 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language -- Study and teaching -- Foreign speakers.
<br/><br/><label>Universal Decimal Class. No.: </label>371.9