Murphy, R. (1990). Essential Grammar in Use: H( with answer). Cambridge: Cambridge University.
シカゴスタイル引用形Murphy, Raymond. Essential Grammar in Use: H( With Answer). Cambridge: Cambridge University, 1990.
MLA引用形式Murphy, Raymond. Essential Grammar in Use: H( With Answer). Cambridge: Cambridge University, 1990.
警告: この引用は必ずしも正確ではありません.