Azar, Betty Schrampfer,    1941- <br/><br/>
Understanding and using English grammar / 
Betty S. Azar, Stacy A. Hagen. 
 - 4th ed. 
 - White Plains, NY :  Pearson Education,  c2009. 
 - 530 p. :  col. ill. ;  26 cm. +  1 CD-ROM (4 3/4 in.) 
<br/><br/><label>ISBN: </label>9780132333337 (pbk. with audio)   RM 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language -- Textbooks for foreign speakers.<br/>English language -- Grammar -- Problems, exercises, etc.