APA引文

Howard, R. E. (1976). Worms of the earth. Futura Publications.

芝加哥风格引文

Howard, Robert Ervin. Worms of the Earth. London: Futura Publications, 1976.

MLA引文

Howard, Robert Ervin. Worms of the Earth. Futura Publications, 1976.

警告：这些引文格式不一定是100％准确.