APA引文

Johnston, R. A. (2005). A companion to Beowulf. Greenwood Press.

芝加哥风格引文

Johnston, Ruth A. A Companion to Beowulf. Westport, Conn.: Greenwood Press, 2005.

MLA引文

Johnston, Ruth A. A Companion to Beowulf. Greenwood Press, 2005.

警告：这些引文格式不一定是100％准确.