IELTS :
IELTS : International English Language Testing System /.
- Second edition
- New York : Kaplan Publishing, 2011.
- 253 p. : ill. + 1 CD-ROM (4 3/4 in.) ; 28 cm.
978-1-60714-655-1
Languages of the World
978-1-60714-655-1
Languages of the World