Conway, D., & Shirreffs, B. (2003). On Course for IELTS: Student's Book. Oxford University Press.
Chicagoスタイル(17版)引用形式Conway, Darren, , Brett Shirreffs. On Course for IELTS: Student's Book. Melbourne: Oxford University Press, 2003.
MLA(9版)引用形式Conway, Darren, , Brett Shirreffs. On Course for IELTS: Student's Book. Oxford University Press, 2003.
警告: この引用は必ずしも正確ではありません.