Murphy, R. (2015). Essential Grammar in Use: A self-study reference and practice book for elementary learners of English (cuarta edición.). Cambridge University.
Chicagoスタイル(17版)引用形式Murphy, Raymond. Essential Grammar in Use: A Self-study Reference and Practice Book for Elementary Learners of English. cuarta edición. Cambridge: Cambridge University, 2015.
MLA(9版)引用形式Murphy, Raymond. Essential Grammar in Use: A Self-study Reference and Practice Book for Elementary Learners of English. cuarta edición. Cambridge University, 2015.
警告: この引用は必ずしも正確ではありません.