ALLSOP, J. (1988). Penguin english tests book 1. Penguin Books.
Chicagoスタイル(17版)引用形式ALLSOP, Jake. Penguin English Tests Book 1. London: Penguin Books, 1988.
MLA(9版)引用形式ALLSOP, Jake. Penguin English Tests Book 1. Penguin Books, 1988.
警告: この引用は必ずしも正確ではありません.