APA引文

J.R.R. Tolkien. (1991). The Hobbit: The Prelude to The Lord of the Rings. Harper Collins Publishers.

芝加哥风格引文

J.R.R. Tolkien. The Hobbit: The Prelude to The Lord of the Rings. Great Britain: Harper Collins Publishers, 1991.

MLA引文

J.R.R. Tolkien. The Hobbit: The Prelude to The Lord of the Rings. Harper Collins Publishers, 1991.

警告：这些引文格式不一定是100％准确.