APA引文

Girvan, R. (1971). Beowulf and the seventh century: Language and content.

Chicago Edition Citation

Girvan, Ritchie. Beowulf and the Seventh Century: Language and Content. London, Methuen, 1971.

MLA引文

Girvan, Ritchie. Beowulf and the Seventh Century: Language and Content. 1971.

警告：這些引文格式不一定是100％准確.