Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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