APA引文

Gilbert, A. (1971). Knock, knock! who's there? White Lion.

芝加哥风格引文

Gilbert, Anthony. Knock, Knock! Who's There? London: White Lion, 1971.

MLA引文

Gilbert, Anthony. Knock, Knock! Who's There? White Lion, 1971.

警告：这些引文格式不一定是100％准确.