APA引文

Roberts, J. (1992). The penguin history of the world. Penguin.

芝加哥风格引文

Roberts, J.M. The Penguin History of the World. 3rd.ed: Penguin, 1992.

MLA引文

Roberts, J.M. The Penguin History of the World. Penguin, 1992.

警告：这些引文格式不一定是100％准确.