APA引文

Tolkien, J., & Tolkien, C. (2009). Legends of sigurd and gudrun. HarperCollins Publishers.

Chicago Edition Citation

Tolkien, J.R.R, and Christopher Tolkien. Legends of Sigurd and Gudrun. London: HarperCollins Publishers, 2009.

MLA引文

Tolkien, J.R.R, and Christopher Tolkien. Legends of Sigurd and Gudrun. HarperCollins Publishers, 2009.

警告：這些引文格式不一定是100％准確.