May, P. (2000). Knockout first certificate: Student's book (5th ed.). Oxford: Oxford U. P..
シカゴスタイル引用形May, Peter. Knockout First Certificate: Student's Book. 5th ed. Oxford: Oxford U. P., 2000.
MLA引用形式May, Peter. Knockout First Certificate: Student's Book. 5th ed. Oxford: Oxford U. P., 2000.
警告: この引用は必ずしも正確ではありません.