Hornby, A.S. <br/><br/>
Structural words and sentence pattern / 
Hornby, A.S. 
 - 10th ed. 
 - New Delhi:  Oxford University Press,  1994. 
 - xxii,160p;23cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>319564441x 
<br/><br/><label>Dewey Class. No.: </label>425 HOR