APA (7e ed.) Bronvermelding

Conway, D., & Shirreffs, B. (2003). On Course for IELTS: Student's Book. Oxford University Press.

Chicago (17e ed.) Bronvermelding

Conway, Darren, en Brett Shirreffs. On Course for IELTS: Student's Book. Melbourne: Oxford University Press, 2003.

MLA (9e ed.) Bronvermelding

Conway, Darren, en Brett Shirreffs. On Course for IELTS: Student's Book. Oxford University Press, 2003.