APA引文

Tolkien,J.R.R, & Tolkien,Christopher. (2009). The legend of Sigurd and Gudrun. Harper collins.

Chicago Edition Citation

Tolkien,J.R.R, and Tolkien,Christopher. The Legend of Sigurd and Gudrun. London: Harper collins, 2009.

MLA引文

Tolkien,J.R.R, and Tolkien,Christopher. The Legend of Sigurd and Gudrun. Harper collins, 2009.

警告：這些引文格式不一定是100％准確.