Waters, Mary and Waters, Alan. <br/><br/>
Study tasks in english / 

 - UK,  Cambridge University Press,  c1995. 
 - ix, 214p. ;  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9780521426145 
<br/><br/><label>Dewey Class. No.: </label>808.042