APA引文

Pollock, J. C. (1977). Wilberforce. Constable.

芝加哥风格引文

Pollock, John Charles. Wilberforce. London: Constable, 1977.

MLA引文

Pollock, John Charles. Wilberforce. Constable, 1977.

警告：这些引文格式不一定是100％准确.