Choy Penelope <br/><br/>
Basic grammar and usage/ 

 - 7th ed. 
 - Boston:  Thomson Wadsworth,  2006 
 - xi, 300p. 
<br/><br/>Includes Index 
<br/><br/><label>ISBN: </label>9781413008920 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English - Grammar
<br/><br/><label>LC Class. No.: </label>PE1112