ALLEN, W. S. (1974). Living english structure: Key to the exercises. Longman.
Chicagoスタイル(17版)引用形式ALLEN, W. Stannard. Living English Structure: Key to the Exercises. London: Longman, 1974.
MLA(9版)引用形式ALLEN, W. Stannard. Living English Structure: Key to the Exercises. Longman, 1974.
警告: この引用は必ずしも正確ではありません.