Murphy, Raymond  <br/><br/>
Essential grammar in use. 
Raymond Murphy 
 - 2nd ed. 
 - New York:  Cambridge,  1998. 
 - 300 p. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0-521-55928-6 
<br/><br/><label>Dewey Class. No.: </label>425 MUE