APA引文

Debono, E. (1977). The happiness purpose. Penguin.

芝加哥风格引文

Debono, Edward. The Happiness Purpose. England: Penguin, 1977.

MLA引文

Debono, Edward. The Happiness Purpose. Penguin, 1977.

警告：这些引文格式不一定是100％准确.