APA
(2004). IELTS Foundation Study Skills CD. : Macmillan Publishers Limited.
Chicago
2004. IELTS Foundation Study Skills CD. : Macmillan Publishers Limited.
Harvard
(2004). IELTS Foundation Study Skills CD. : Macmillan Publishers Limited.
MLA
IELTS Foundation Study Skills CD. : Macmillan Publishers Limited. 2004.