APA引文

ALLSOP, J. (1988). Penguin english tests book 3. Penguin Books.

芝加哥风格引文

ALLSOP, Jake. Penguin English Tests Book 3. London: Penguin Books, 1988.

MLA引文

ALLSOP, Jake. Penguin English Tests Book 3. Penguin Books, 1988.

警告：这些引文格式不一定是100％准确.