(2003). American Headway 3: Student book. Oxford: Oxford University Press.
シカゴスタイル引用形American Headway 3: Student Book. Oxford: Oxford University Press, 2003.
MLA引用形式American Headway 3: Student Book. Oxford: Oxford University Press, 2003.
警告: この引用は必ずしも正確ではありません.