Conway, D., & Shirreffs, B. (2003). On course for IELTS: Student book. Oxford University Press.
Chicagoスタイル(17版)引用形式Conway, Darren, , Brett Shirreffs. On Course for IELTS: Student Book. Oxford: Oxford University Press, 2003.
MLA(8版)引用形式Conway, Darren, , Brett Shirreffs. On Course for IELTS: Student 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.