Murphy, R. (2007). Essential grammar in use: CD-ROM. Cambridge University Press.
Chicagoスタイル(17版)引用形式Murphy, Raymond. Essential Grammar in Use: CD-ROM. Cambridge: Cambridge University Press, 2007.
MLA(9版)引用形式Murphy, Raymond. Essential Grammar in Use: CD-ROM. Cambridge University Press, 2007.
警告: この引用は必ずしも正確ではありません.