Murphy, Raymond <br/><br/>
Essential grammar in use 
Raymond Murphy 
 - CA  Cambridge University Press  c1998 
 - 300 pages  25 cm 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0-521-55928-6 
<br/><br/><label>Dewey Class. No.: </label>Circ. 415 M957e 1998