APA引文

Raymond Briggs. (2013). The snowman. Puffin.

芝加哥风格引文

Raymond Briggs. The Snowman. London: Puffin, 2013.

MLA引文

Raymond Briggs. The Snowman. Puffin, 2013.

警告：这些引文格式不一定是100％准确.