Obee, Bob <br/><br/>
Cambridge first certificate  grammar and usage 
Bob Obee. ; Edi: Sue O'Connell 
 - 1st ed. 
 - Cambridge  Cambridge University Press  1995 
 - 124 p.  20 cm. 
<br/><br/> Teacher's book 
<br/><br/><label>ISBN: </label>0521435390 0521435404 
<br/><br/><label>Dewey Class. No.: </label>425 OBE