APA aipamena

Benton, W. P. Encyclopaedia Britannica 21: Sordello to Textbooks.

Chicago Style aipamena

Benton, William. Publisher. Encyclopaedia Britannica 21: Sordello to Textbooks. Chicago : Encyclopaedia Britannica, Inc.

MLA aipamena

Benton, William. Publisher. Encyclopaedia Britannica 21: Sordello to Textbooks.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.