Powell, Debra. <br/><br/>
Grammar practice :  for upper intermediate students : with key / 
Debra Powell, Elaine Walker and Steve Elsworth. 
 - 3rd ed. 
 - Harlow,England :  Pearson/ Longman,  2008. 
 - 224 p. :  ill. ;  25 cm. +  CD-Rom 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9781405853002 (pbk.)   RM 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language --Examination, question, etc.