Powell Debra. <br/><br/>
Grammar practice for upper intermediate students :  with key / 
Debra Powell with Elaine Walker and Steve Elsworth. 
 - 3rd ed., 5th impression. 
 - Harlow :  Pearson-Longman,  2011. 
 - 224 s. :  il. ;  26 cm +  1 dysk optyczny (CD-ROM). 
<br/><br/><label>ISBN: </label>9781405853002 (pack) 9781405844697 (book with key) 9781405844680 (CD-ROM) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Język angielski--gramatyka--zadania i ćwiczenia.