Swan, M. (2009). How english works: A grammar practice book with answers. Oxford: Oxford University Press.
シカゴスタイル引用形Swan, Micheal. How English Works: A Grammar Practice Book With Answers. Oxford: Oxford University Press, 2009.
MLA引用形式Swan, Micheal. How English Works: A Grammar Practice Book With Answers. Oxford: Oxford University Press, 2009.
警告: この引用は必ずしも正確ではありません.