Shaw, K. (1991). Collins cobuild english grammar exercises. London: Harper collins Pub.
シカゴスタイル引用形Shaw, Katy. Collins Cobuild English Grammar Exercises. London: Harper collins Pub, 1991.
MLA引用形式Shaw, Katy. Collins Cobuild English Grammar Exercises. London: Harper collins Pub, 1991.
警告: この引用は必ずしも正確ではありません.