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).
9781405853002 (pack) 9781405844697 (book with key) 9781405844680 (CD-ROM)