TY  - GEN
AU  - Black,Michael
AU  - Sharp، Wendy
TI  - Objective IELTS. : Workbook with answers 
SN  - 9780521608749
U1  - 420 
PY  - 2006///
CY  - New York
PB  - Cambridge University, 
KW  -  English language
KW  -  Textbooks for foreign speakers
KW  -  Examinations, questions, etc
KW  - English language
KW  -  Grammar
KW  -  Problems, exercises, etc
ER  -