Duckworth, M. (1995). Grammar and practice. Oxford: Oxford University Press.
シカゴスタイル引用形Duckworth, Michael. Grammar and Practice. Oxford: Oxford University Press, 1995.
MLA引用形式Duckworth, Michael. Grammar and Practice. Oxford: Oxford University Press, 1995.
警告: この引用は必ずしも正確ではありません.