Azar Betty Schrampfer <br/><br/>
Understanding and using English grammar/ 
Betty Schrampfer Azar. 
 - 3rd ed. 
 - New York :  Longman.  1998. 
 - xvi, 437 p. : 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0131933051 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language - grammar
<br/><br/><label>LC Class. No.: </label>PE 1128 .A97 1998