APA引文

Spurgeon, E. F. (1922). Life contingencies. Layton.

芝加哥风格引文

Spurgeon, E. F. Life Contingencies. London: Layton, 1922.

MLA引文

Spurgeon, E. F. Life Contingencies. Layton, 1922.

警告：这些引文格式不一定是100％准确.